66265115611051 has 16 divisors (see below), whose sum is σ = 77627062864384. Its totient is φ = 55381622413824.

The previous prime is 66265115611043. The next prime is 66265115611061. The reversal of 66265115611051 is 15011651156266.

It is not a de Polignac number, because 66265115611051 - 2³ = 66265115611043 is a prime.

It is a super-2 number, since 2×66265115611051² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66265115610992 and 66265115611010.

It is not an unprimeable number, because it can be changed into a prime (66265115611061) 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, 190597455 + ... + 190944808.

It is an arithmetic number, because the mean of its divisors is an integer number (4851691429024).

Almost surely, 2^{66265115611051} is an apocalyptic number.

66265115611051 is a deficient number, since it is larger than the sum of its proper divisors (11361947253333).

66265115611051 is a wasteful number, since it uses less digits than its factorization.

66265115611051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381542890.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 66265115611051 in words is "sixty-six trillion, two hundred sixty-five billion, one hundred fifteen million, six hundred eleven thousand, fifty-one".