157806648 has 96 divisors (see below), whose sum is σ = 455317200. Its totient is φ = 49204224.

The previous prime is 157806637. The next prime is 157806667. The reversal of 157806648 is 846608751.

It is a happy number.

157806648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280015 + ... + 280577.

Almost surely, 2^157806648 is an apocalyptic number.

157806648 is a gapful number since it is divisible by the number (18) 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 157806648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227658600).

157806648 is an abundant number, since it is smaller than the sum of its proper divisors (297510552).

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

157806648 is a wasteful number, since it uses less digits than its factorization.

157806648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 157806648 is about 12562.1116059363. Note that the first 3 decimals coincide. The cubic root of 157806648 is about 540.3914034767.

The spelling of 157806648 in words is "one hundred fifty-seven million, eight hundred six thousand, six hundred forty-eight".