155807112008 has 8 divisors (see below), whose sum is σ = 292138335030. Its totient is φ = 77903556000.

The previous prime is 155807112007. The next prime is 155807112017. The reversal of 155807112008 is 800211708551.

155807112008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 126865617124 + 28941494884 = 356182^2 + 170122^2 .

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

It is not an unprimeable number, because it can be changed into a prime (155807112007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9737944493 + ... + 9737944508.

Almost surely, 2^155807112008 is an apocalyptic number.

It is an amenable number.

155807112008 is a deficient number, since it is larger than the sum of its proper divisors (136331223022).

155807112008 is a wasteful number, since it uses less digits than its factorization.

155807112008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19475889007 (or 19475889003 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 38.

The spelling of 155807112008 in words is "one hundred fifty-five billion, eight hundred seven million, one hundred twelve thousand, eight".