66112162613515 has 16 divisors (see below), whose sum is σ = 79746344955648. Its totient is φ = 52615234953216.

The previous prime is 66112162613509. The next prime is 66112162613533. The reversal of 66112162613515 is 51531626121166.

It is a cyclic number.

It is not a de Polignac number, because 66112162613515 - 2¹³ = 66112162605323 is a prime.

It is a Duffinian 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, 151728454 + ... + 152163556.

It is an arithmetic number, because the mean of its divisors is an integer number (4984146559728).

Almost surely, 2^{66112162613515} is an apocalyptic number.

66112162613515 is a deficient number, since it is larger than the sum of its proper divisors (13634182342133).

66112162613515 is a wasteful number, since it uses less digits than its factorization.

66112162613515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592758.

The product of its digits is 388800, while the sum is 46.

The spelling of 66112162613515 in words is "sixty-six trillion, one hundred twelve billion, one hundred sixty-two million, six hundred thirteen thousand, five hundred fifteen".