157663628 has 12 divisors (see below), whose sum is σ = 282328200. Its totient is φ = 76998432.

The previous prime is 157663619. The next prime is 157663637. The reversal of 157663628 is 826366751.

It is an interprime number because it is at equal distance from previous prime (157663619) and next prime (157663637).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458153 + ... + 458496.

It is an arithmetic number, because the mean of its divisors is an integer number (23527350).

Almost surely, 2^157663628 is an apocalyptic number.

It is an amenable number.

157663628 is a deficient number, since it is larger than the sum of its proper divisors (124664572).

157663628 is a wasteful number, since it uses less digits than its factorization.

157663628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916696 (or 916694 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 157663628 is about 12556.4178012680. The cubic root of 157663628 is about 540.2281020789.

The spelling of 157663628 in words is "one hundred fifty-seven million, six hundred sixty-three thousand, six hundred twenty-eight".