161128901160 has 64 divisors (see below), whose sum is σ = 537096340800. Its totient is φ = 42967706688.

The previous prime is 161128901147. The next prime is 161128901183. The reversal of 161128901160 is 61109821161.

It is a happy number.

161128901160 is a `hidden beast` number, since 1 + 611 + 28 + 9 + 0 + 1 + 16 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74595634 + ... + 74597793.

It is an arithmetic number, because the mean of its divisors is an integer number (8392130325).

Almost surely, 2^161128901160 is an apocalyptic number.

161128901160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161128901160 is an abundant number, since it is smaller than the sum of its proper divisors (375967439640).

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

161128901160 is a wasteful number, since it uses less digits than its factorization.

161128901160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149193447 (or 149193437 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The spelling of 161128901160 in words is "one hundred sixty-one billion, one hundred twenty-eight million, nine hundred one thousand, one hundred sixty".