145938997606568 has 8 divisors (see below), whose sum is σ = 273635620512330. Its totient is φ = 72969498803280.

The previous prime is 145938997606511. The next prime is 145938997606579. The reversal of 145938997606568 is 865606799839541.

It can be written as a sum of positive squares in only one way, i.e., 74229907399684 + 71709090206884 = 8615678^2 + 8468122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 145938997606568.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9121187350403 + ... + 9121187350418.

Almost surely, 2^{145938997606568} is an apocalyptic number.

It is an amenable number.

145938997606568 is a deficient number, since it is larger than the sum of its proper divisors (127696622905762).

145938997606568 is a wasteful number, since it uses less digits than its factorization.

145938997606568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18242374700827 (or 18242374700823 counting only the distinct ones).

The product of its (nonzero) digits is 21163161600, while the sum is 86.

The spelling of 145938997606568 in words is "one hundred forty-five trillion, nine hundred thirty-eight billion, nine hundred ninety-seven million, six hundred six thousand, five hundred sixty-eight".