165187490832 has 160 divisors (see below), whose sum is σ = 583568482560. Its totient is φ = 43565921280.

The previous prime is 165187490813. The next prime is 165187490849. The reversal of 165187490832 is 238094781561.

165187490832 is a `hidden beast` number, since 1 + 6 + 518 + 7 + 4 + 90 + 8 + 32 = 666.

165187490832 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2061669 + ... + 2140292.

It is an arithmetic number, because the mean of its divisors is an integer number (3647303016).

It is a 1-persistent number, because it is pandigital, but 2⋅165187490832 = 330374981664 is not.

Almost surely, 2^165187490832 is an apocalyptic number.

165187490832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165187490832 is an abundant number, since it is smaller than the sum of its proper divisors (418380991728).

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

165187490832 is a wasteful number, since it uses less digits than its factorization.

165187490832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201998 (or 4201986 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 165187490832 in words is "one hundred sixty-five billion, one hundred eighty-seven million, four hundred ninety thousand, eight hundred thirty-two".