157611980 has 24 divisors (see below), whose sum is σ = 332656800. Its totient is φ = 62727984.

The previous prime is 157611943. The next prime is 157612019. The reversal of 157611980 is 89116751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791921 + ... + 792119.

It is an arithmetic number, because the mean of its divisors is an integer number (13860700).

Almost surely, 2^157611980 is an apocalyptic number.

157611980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157611980 is an abundant number, since it is smaller than the sum of its proper divisors (175044820).

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

157611980 is an frugal number, since it uses more digits than its factorization.

157611980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 157611980 is about 12554.3609952877. The cubic root of 157611980 is about 540.1691057024.

The spelling of 157611980 in words is "one hundred fifty-seven million, six hundred eleven thousand, nine hundred eighty".