75705177150146 has 4 divisors (see below), whose sum is σ = 113557765725222. Its totient is φ = 37852588575072.

The previous prime is 75705177150139. The next prime is 75705177150167. The reversal of 75705177150146 is 64105177150757.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72389722486225 + 3315454663921 = 8508215^2 + 1820839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75705177150091 and 75705177150100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18926294287535 + ... + 18926294287538.

Almost surely, 2^{75705177150146} is an apocalyptic number.

75705177150146 is a deficient number, since it is larger than the sum of its proper divisors (37852588575076).

75705177150146 is a wasteful number, since it uses less digits than its factorization.

75705177150146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37852588575075.

The product of its (nonzero) digits is 7203000, while the sum is 56.

The spelling of 75705177150146 in words is "seventy-five trillion, seven hundred five billion, one hundred seventy-seven million, one hundred fifty thousand, one hundred forty-six".