60666581667 has 16 divisors (see below), whose sum is σ = 85653378720. Its totient is φ = 38062444032.

The previous prime is 60666581663. The next prime is 60666581681. The reversal of 60666581667 is 76618566606.

It is not a de Polignac number, because 60666581667 - 2² = 60666581663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60666581663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792309 + ... + 865497.

It is an arithmetic number, because the mean of its divisors is an integer number (5353336170).

Almost surely, 2^60666581667 is an apocalyptic number.

60666581667 is a deficient number, since it is larger than the sum of its proper divisors (24986797053).

60666581667 is a wasteful number, since it uses less digits than its factorization.

60666581667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89462.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 60666581667 in words is "sixty billion, six hundred sixty-six million, five hundred eighty-one thousand, six hundred sixty-seven".