155351315908 has 6 divisors (see below), whose sum is σ = 271864802846. Its totient is φ = 77675657952.

The previous prime is 155351315813. The next prime is 155351315923. The reversal of 155351315908 is 809513153551.

It can be written as a sum of positive squares in only one way, i.e., 90973417924 + 64377897984 = 301618^2 + 253728^2 .

It is a super-3 number, since 3×155351315908³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19418914485 + ... + 19418914492.

Almost surely, 2^155351315908 is an apocalyptic number.

It is an amenable number.

155351315908 is a deficient number, since it is larger than the sum of its proper divisors (116513486938).

155351315908 is a wasteful number, since it uses less digits than its factorization.

155351315908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38837828981 (or 38837828979 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 46.

The spelling of 155351315908 in words is "one hundred fifty-five billion, three hundred fifty-one million, three hundred fifteen thousand, nine hundred eight".