163440162443524 has 6 divisors (see below), whose sum is σ = 286020284276174. Its totient is φ = 81720081221760.

The previous prime is 163440162443501. The next prime is 163440162443563. The reversal of 163440162443524 is 425344261044361.

It can be written as a sum of positive squares in only one way, i.e., 163089246009600 + 350916433924 = 12770640^2 + 592382^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20430020305437 + ... + 20430020305444.

Almost surely, 2^{163440162443524} is an apocalyptic number.

It is an amenable number.

163440162443524 is a deficient number, since it is larger than the sum of its proper divisors (122580121832650).

163440162443524 is a wasteful number, since it uses less digits than its factorization.

163440162443524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40860040610885 (or 40860040610883 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 49.

The spelling of 163440162443524 in words is "one hundred sixty-three trillion, four hundred forty billion, one hundred sixty-two million, four hundred forty-three thousand, five hundred twenty-four".