157663646 has 32 divisors (see below), whose sum is σ = 275159808. Its totient is φ = 66360960.

The previous prime is 157663637. The next prime is 157663657. The reversal of 157663646 is 646366751.

157663646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 157663597 and 157663606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279761 + ... + 280323.

It is an arithmetic number, because the mean of its divisors is an integer number (8598744).

Almost surely, 2^157663646 is an apocalyptic number.

157663646 is a deficient number, since it is larger than the sum of its proper divisors (117496162).

157663646 is a wasteful number, since it uses less digits than its factorization.

157663646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 544320, while the sum is 44.

The square root of 157663646 is about 12556.4185180329. The cubic root of 157663646 is about 540.2281226377.

The spelling of 157663646 in words is "one hundred fifty-seven million, six hundred sixty-three thousand, six hundred forty-six".