157681626 has 16 divisors (see below), whose sum is σ = 316303104. Its totient is φ = 52403904.

The previous prime is 157681607. The next prime is 157681631. The reversal of 157681626 is 626186751.

157681626 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 36970 + ... + 41013.

It is an arithmetic number, because the mean of its divisors is an integer number (19768944).

Almost surely, 2^157681626 is an apocalyptic number.

157681626 is an abundant number, since it is smaller than the sum of its proper divisors (158621478).

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

157681626 is a wasteful number, since it uses less digits than its factorization.

157681626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78325.

The product of its digits is 120960, while the sum is 42.

The square root of 157681626 is about 12557.1344661113. The cubic root of 157681626 is about 540.2486577720.

The spelling of 157681626 in words is "one hundred fifty-seven million, six hundred eighty-one thousand, six hundred twenty-six".