75157880866 has 16 divisors (see below), whose sum is σ = 113110746840. Its totient is φ = 37454376960.

The previous prime is 75157880857. The next prime is 75157880867. The reversal of 75157880866 is 66808875157.

It can be written as a sum of positive squares in 4 ways, for example, as 8091902025 + 67065978841 = 89955^2 + 258971^2 .

It is not an unprimeable number, because it can be changed into a prime (75157880867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085690 + ... + 2121418.

Almost surely, 2^75157880866 is an apocalyptic number.

75157880866 is a deficient number, since it is larger than the sum of its proper divisors (37952865974).

75157880866 is a wasteful number, since it uses less digits than its factorization.

75157880866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39189.

The product of its (nonzero) digits is 22579200, while the sum is 61.

The spelling of 75157880866 in words is "seventy-five billion, one hundred fifty-seven million, eight hundred eighty thousand, eight hundred sixty-six".