155475050004 has 18 divisors (see below), whose sum is σ = 393006376490. Its totient is φ = 51825016656.

The previous prime is 155475049997. The next prime is 155475050041. The reversal of 155475050004 is 400050574551.

155475050004 is a `hidden beast` number, since 1 + 554 + 7 + 50 + 50 + 0 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 145083286404 + 10391763600 = 380898^2 + 101940^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4318751389 = 155475050004 / (1 + 5 + 5 + 4 + 7 + 5 + 0 + 5 + 0 + 0 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2159375659 + ... + 2159375730.

Almost surely, 2^155475050004 is an apocalyptic number.

It is an amenable number.

155475050004 is an abundant number, since it is smaller than the sum of its proper divisors (237531326486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155475050004 is a wasteful number, since it uses less digits than its factorization.

155475050004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318751399 (or 4318751394 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The spelling of 155475050004 in words is "one hundred fifty-five billion, four hundred seventy-five million, fifty thousand, four".