154513221301552 has 20 divisors (see below), whose sum is σ = 299369963935296. Its totient is φ = 77256456415040.

The previous prime is 154513221301547. The next prime is 154513221301589. The reversal of 154513221301552 is 255103122315451.

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, 1148224 + ... + 17616607.

Almost surely, 2^{154513221301552} is an apocalyptic number.

It is an amenable number.

154513221301552 is a deficient number, since it is larger than the sum of its proper divisors (144856742633744).

154513221301552 is a wasteful number, since it uses less digits than its factorization.

154513221301552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19279476 (or 19279470 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 154513221301552 in words is "one hundred fifty-four trillion, five hundred thirteen billion, two hundred twenty-one million, three hundred one thousand, five hundred fifty-two".