157641996 has 12 divisors (see below), whose sum is σ = 367831352. Its totient is φ = 52547328.

The previous prime is 157641989. The next prime is 157642021. The reversal of 157641996 is 699146751.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 6568405 + ... + 6568428.

Almost surely, 2^157641996 is an apocalyptic number.

It is an amenable number.

157641996 is an abundant number, since it is smaller than the sum of its proper divisors (210189356).

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

157641996 is a wasteful number, since it uses less digits than its factorization.

157641996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13136840 (or 13136838 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 157641996 is about 12555.5563795477. The cubic root of 157641996 is about 540.2033938885.

The spelling of 157641996 in words is "one hundred fifty-seven million, six hundred forty-one thousand, nine hundred ninety-six".