157956720 has 40 divisors (see below), whose sum is σ = 489666576. Its totient is φ = 42121728.

The previous prime is 157956713. The next prime is 157956731. The reversal of 157956720 is 27659751.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 328837 + ... + 329316.

Almost surely, 2^157956720 is an apocalyptic number.

157956720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157956720 is an abundant number, since it is smaller than the sum of its proper divisors (331709856).

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

157956720 is a wasteful number, since it uses less digits than its factorization.

157956720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658169 (or 658163 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 157956720 is about 12568.0833861015. The cubic root of 157956720 is about 540.5626508559.

The spelling of 157956720 in words is "one hundred fifty-seven million, nine hundred fifty-six thousand, seven hundred twenty".