157678656 has 56 divisors (see below), whose sum is σ = 424062144. Its totient is φ = 51694080.

The previous prime is 157678627. The next prime is 157678667. The reversal of 157678656 is 656876751.

It is a junction number, because it is equal to n+sod(n) for n = 157678599 and 157678608.

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, 4981 + ... + 18443.

Almost surely, 2^157678656 is an apocalyptic number.

157678656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157678656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212031072).

157678656 is an abundant number, since it is smaller than the sum of its proper divisors (266383488).

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

157678656 is a wasteful number, since it uses less digits than its factorization.

157678656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13539 (or 13529 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 157678656 is about 12557.0162060897. The cubic root of 157678656 is about 540.2452658135.

The spelling of 157678656 in words is "one hundred fifty-seven million, six hundred seventy-eight thousand, six hundred fifty-six".