47221164117 has 12 divisors (see below), whose sum is σ = 68257756684. Its totient is φ = 31457972160.

The previous prime is 47221164103. The next prime is 47221164127. The reversal of 47221164117 is 71146112274.

47221164117 is a `hidden beast` number, since 4 + 7 + 2 + 2 + 1 + 1 + 641 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37812358116 + 9408806001 = 194454^2 + 96999^2 .

It is not a de Polignac number, because 47221164117 - 2⁷ = 47221163989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47221164127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1887208 + ... + 1912065.

Almost surely, 2^47221164117 is an apocalyptic number.

It is an amenable number.

47221164117 is a deficient number, since it is larger than the sum of its proper divisors (21036592567).

47221164117 is a wasteful number, since it uses less digits than its factorization.

47221164117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800660 (or 3800657 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The spelling of 47221164117 in words is "forty-seven billion, two hundred twenty-one million, one hundred sixty-four thousand, one hundred seventeen".