165456154332 has 144 divisors (see below), whose sum is σ = 498207790080. Its totient is φ = 47032840512.

The previous prime is 165456154289. The next prime is 165456154351. The reversal of 165456154332 is 233451654561.

It is a happy number.

165456154332 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 561 + 54 + 3 + 32 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1278669 + ... + 1402107.

It is an arithmetic number, because the mean of its divisors is an integer number (3459776320).

Almost surely, 2^165456154332 is an apocalyptic number.

165456154332 is a gapful number since it is divisible by the number (12) 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 165456154332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249103895040).

165456154332 is an abundant number, since it is smaller than the sum of its proper divisors (332751635748).

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

165456154332 is a wasteful number, since it uses less digits than its factorization.

165456154332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123662 (or 123648 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 165456154332 in words is "one hundred sixty-five billion, four hundred fifty-six million, one hundred fifty-four thousand, three hundred thirty-two".