75155855157 has 32 divisors (see below), whose sum is σ = 112096373760. Its totient is φ = 49765408560.

The previous prime is 75155855153. The next prime is 75155855161.

75155855157 is a `hidden beast` number, since 7 + 5 + 1 + 5 + 585 + 5 + 1 + 57 = 666.

75155855157 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (75155855153) and next prime (75155855161).

It is not a de Polignac number, because 75155855157 - 2² = 75155855153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75155855153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2852478 + ... + 2878704.

It is an arithmetic number, because the mean of its divisors is an integer number (3503011680).

Almost surely, 2^75155855157 is an apocalyptic number.

It is an amenable number.

75155855157 is a deficient number, since it is larger than the sum of its proper divisors (36940518603).

75155855157 is a wasteful number, since it uses less digits than its factorization.

75155855157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26950 (or 26944 counting only the distinct ones).

The product of its digits is 6125000, while the sum is 54.

The spelling of 75155855157 in words is "seventy-five billion, one hundred fifty-five million, eight hundred fifty-five thousand, one hundred fifty-seven".