75756665601 has 6 divisors (see below), whose sum is σ = 109426294770. Its totient is φ = 50504443728.

The previous prime is 75756665563. The next prime is 75756665669. The reversal of 75756665601 is 10656665757.

It can be written as a sum of positive squares in only one way, i.e., 63063263376 + 12693402225 = 251124^2 + 112665^2 .

It is not a de Polignac number, because 75756665601 - 2¹⁴ = 75756649217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75756665401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4208703636 + ... + 4208703653.

It is an arithmetic number, because the mean of its divisors is an integer number (18237715795).

Almost surely, 2^75756665601 is an apocalyptic number.

It is an amenable number.

75756665601 is a deficient number, since it is larger than the sum of its proper divisors (33669629169).

75756665601 is a wasteful number, since it uses less digits than its factorization.

75756665601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417407295 (or 8417407292 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 54.

The spelling of 75756665601 in words is "seventy-five billion, seven hundred fifty-six million, six hundred sixty-five thousand, six hundred one".