5165655651 has 24 divisors (see below), whose sum is σ = 8040186336. Its totient is φ = 3176997120.

The previous prime is 5165655637. The next prime is 5165655659. The reversal of 5165655651 is 1565565615.

It is a de Polignac number, because none of the positive numbers 2^k-5165655651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5165655597 and 5165655606.

It is not an unprimeable number, because it can be changed into a prime (5165655659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202171 + ... + 226283.

It is an arithmetic number, because the mean of its divisors is an integer number (335007764).

Almost surely, 2^5165655651 is an apocalyptic number.

5165655651 is a deficient number, since it is larger than the sum of its proper divisors (2874530685).

5165655651 is a wasteful number, since it uses less digits than its factorization.

5165655651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25963 (or 25960 counting only the distinct ones).

The product of its digits is 675000, while the sum is 45.

The square root of 5165655651 is about 71872.4957894186. The cubic root of 5165655651 is about 1728.6556264642.

The spelling of 5165655651 in words is "five billion, one hundred sixty-five million, six hundred fifty-five thousand, six hundred fifty-one".