5165474661 has 12 divisors (see below), whose sum is σ = 7463135680. Its totient is φ = 3442775400.

The previous prime is 5165474659. The next prime is 5165474669. The reversal of 5165474661 is 1664745615.

5165474661 is a `hidden beast` number, since 5 + 1 + 6 + 547 + 46 + 61 = 666.

It is not a de Polignac number, because 5165474661 - 2¹ = 5165474659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5165474669) 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, 34381 + ... + 107298.

Almost surely, 2^5165474661 is an apocalyptic number.

It is an amenable number.

5165474661 is a deficient number, since it is larger than the sum of its proper divisors (2297661019).

5165474661 is a wasteful number, since it uses less digits than its factorization.

5165474661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145736 (or 145733 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 5165474661 is about 71871.2366736513. The cubic root of 5165474661 is about 1728.6354371564.

The spelling of 5165474661 in words is "five billion, one hundred sixty-five million, four hundred seventy-four thousand, six hundred sixty-one".