161128983456 has 96 divisors (see below), whose sum is σ = 537096631680. Its totient is φ = 46036850688.

The previous prime is 161128983439. The next prime is 161128983461. The reversal of 161128983456 is 654389821161.

It is a happy number.

161128983456 is a `hidden beast` number, since 1 + 6 + 11 + 289 + 8 + 345 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13314801 + ... + 13326896.

It is an arithmetic number, because the mean of its divisors is an integer number (5594756580).

Almost surely, 2^161128983456 is an apocalyptic number.

161128983456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161128983456 is an abundant number, since it is smaller than the sum of its proper divisors (375967648224).

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

161128983456 is a wasteful number, since it uses less digits than its factorization.

161128983456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26641723 (or 26641709 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 161128983456 in words is "one hundred sixty-one billion, one hundred twenty-eight million, nine hundred eighty-three thousand, four hundred fifty-six".