155604047938 has 16 divisors (see below), whose sum is σ = 235772264376. Its totient is φ = 77013654400.

The previous prime is 155604047917. The next prime is 155604047941. The reversal of 155604047938 is 839740406551.

It can be written as a sum of positive squares in 4 ways, for example, as 136077618769 + 19526429169 = 368887^2 + 139737^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795270 + ... + 971422.

Almost surely, 2^155604047938 is an apocalyptic number.

155604047938 is a deficient number, since it is larger than the sum of its proper divisors (80168216438).

155604047938 is a wasteful number, since it uses less digits than its factorization.

155604047938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180629.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 155604047938 in words is "one hundred fifty-five billion, six hundred four million, forty-seven thousand, nine hundred thirty-eight".