755651125681 has 4 divisors (see below), whose sum is σ = 755697328164. Its totient is φ = 755604923200.

The previous prime is 755651125651. The next prime is 755651125729. The reversal of 755651125681 is 186521156557.

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

It can be written as a sum of positive squares in 2 ways, for example, as 217505640625 + 538145485056 = 466375^2 + 733584^2 .

It is a cyclic number.

It is not a de Polignac number, because 755651125681 - 2³⁷ = 618212172209 is a prime.

It is a super-2 number, since 2×755651125681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (755651125651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23076700 + ... + 23109421.

It is an arithmetic number, because the mean of its divisors is an integer number (188924332041).

Almost surely, 2^755651125681 is an apocalyptic number.

It is an amenable number.

755651125681 is a deficient number, since it is larger than the sum of its proper divisors (46202483).

755651125681 is a wasteful number, since it uses less digits than its factorization.

755651125681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46202482.

The product of its digits is 2520000, while the sum is 52.

The spelling of 755651125681 in words is "seven hundred fifty-five billion, six hundred fifty-one million, one hundred twenty-five thousand, six hundred eighty-one".