156160640 has 128 divisors (see below), whose sum is σ = 408913920. Its totient is φ = 56770560.

The previous prime is 156160637. The next prime is 156160663. The reversal of 156160640 is 46061651.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×156160640² = 48772290970419200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337049 + ... + 337511.

It is an arithmetic number, because the mean of its divisors is an integer number (3194640).

Almost surely, 2^156160640 is an apocalyptic number.

156160640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204456960).

156160640 is an abundant number, since it is smaller than the sum of its proper divisors (252753280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156160640 is a wasteful number, since it uses less digits than its factorization.

156160640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 156160640 is about 12496.4250888004. The cubic root of 156160640 is about 538.5059754431.

The spelling of 156160640 in words is "one hundred fifty-six million, one hundred sixty thousand, six hundred forty".