646160032 has 48 divisors (see below), whose sum is σ = 1500774912. Its totient is φ = 267989760.

The previous prime is 646159981. The next prime is 646160051. The reversal of 646160032 is 230061646.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 39583 + ... + 53470.

It is an arithmetic number, because the mean of its divisors is an integer number (31266144).

Almost surely, 2^646160032 is an apocalyptic number.

646160032 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

646160032 is an abundant number, since it is smaller than the sum of its proper divisors (854614880).

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

646160032 is a wasteful number, since it uses less digits than its factorization.

646160032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93101 (or 93093 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 646160032 is about 25419.6780467417. The cubic root of 646160032 is about 864.5299246816.

The spelling of 646160032 in words is "six hundred forty-six million, one hundred sixty thousand, thirty-two".