66127737076 has 48 divisors (see below), whose sum is σ = 120333306240. Its totient is φ = 31772321280.

The previous prime is 66127737019. The next prime is 66127737089. The reversal of 66127737076 is 67073772166.

66127737076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66127737076² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9897505 + ... + 9904183.

It is an arithmetic number, because the mean of its divisors is an integer number (2506943880).

Almost surely, 2^66127737076 is an apocalyptic number.

It is an amenable number.

66127737076 is a deficient number, since it is larger than the sum of its proper divisors (54205569164).

66127737076 is a wasteful number, since it uses less digits than its factorization.

66127737076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624 (or 7622 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 52.

The spelling of 66127737076 in words is "sixty-six billion, one hundred twenty-seven million, seven hundred thirty-seven thousand, seventy-six".