60666665615 has 16 divisors (see below), whose sum is σ = 73212983328. Its totient is φ = 48258256896.

The previous prime is 60666665597. The next prime is 60666665621. The reversal of 60666665615 is 51656666606.

It is a cyclic number.

It is not a de Polignac number, because 60666665615 - 2¹² = 60666661519 is a prime.

It is a Duffinian number.

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, 2111627 + ... + 2140163.

It is an arithmetic number, because the mean of its divisors is an integer number (4575811458).

Almost surely, 2^60666665615 is an apocalyptic number.

60666665615 is a deficient number, since it is larger than the sum of its proper divisors (12546317713).

60666665615 is a wasteful number, since it uses less digits than its factorization.

60666665615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30938.

The product of its (nonzero) digits is 6998400, while the sum is 53.

Subtracting from 60666665615 its reverse (51656666606), we obtain a palindrome (9009999009).

The spelling of 60666665615 in words is "sixty billion, six hundred sixty-six million, six hundred sixty-five thousand, six hundred fifteen".