163557412 has 6 divisors (see below), whose sum is σ = 286225478. Its totient is φ = 81778704.

The previous prime is 163557403. The next prime is 163557431. The reversal of 163557412 is 214755361.

163557412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 154157056 + 9400356 = 12416^2 + 3066^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444673 + ... + 20444680.

Almost surely, 2^163557412 is an apocalyptic number.

It is an amenable number.

163557412 is a deficient number, since it is larger than the sum of its proper divisors (122668066).

163557412 is a wasteful number, since it uses less digits than its factorization.

163557412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40889357 (or 40889355 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 163557412 is about 12788.9566423536. The cubic root of 163557412 is about 546.8775263970.

The spelling of 163557412 in words is "one hundred sixty-three million, five hundred fifty-seven thousand, four hundred twelve".