66046627161 has 6 divisors (see below), whose sum is σ = 95400683690. Its totient is φ = 44031084768.

The previous prime is 66046627117. The next prime is 66046627249. The reversal of 66046627161 is 16172664066.

66046627161 is a `hidden beast` number, since 6 + 6 + 0 + 4 + 6 + 627 + 16 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 66046430025 + 197136 = 256995^2 + 444^2 .

It is not a de Polignac number, because 66046627161 - 2²² = 66042432857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66046627261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3669257056 + ... + 3669257073.

Almost surely, 2^66046627161 is an apocalyptic number.

It is an amenable number.

66046627161 is a deficient number, since it is larger than the sum of its proper divisors (29354056529).

66046627161 is a wasteful number, since it uses less digits than its factorization.

66046627161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7338514135 (or 7338514132 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 66046627161 in words is "sixty-six billion, forty-six million, six hundred twenty-seven thousand, one hundred sixty-one".