60666581699 has 4 divisors (see below), whose sum is σ = 60668554464. Its totient is φ = 60664608936.

The previous prime is 60666581683. The next prime is 60666581713. The reversal of 60666581699 is 99618566606.

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

It is a cyclic number.

It is not a de Polignac number, because 60666581699 - 2⁴ = 60666581683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60666581629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939512 + ... + 1002005.

It is an arithmetic number, because the mean of its divisors is an integer number (15167138616).

Almost surely, 2^60666581699 is an apocalyptic number.

60666581699 is a deficient number, since it is larger than the sum of its proper divisors (1972765).

60666581699 is a wasteful number, since it uses less digits than its factorization.

60666581699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972764.

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 60666581699 in words is "sixty billion, six hundred sixty-six million, five hundred eighty-one thousand, six hundred ninety-nine".