5651505161 has 2 divisors, whose sum is σ = 5651505162. Its totient is φ = 5651505160.

The previous prime is 5651505133. The next prime is 5651505163. The reversal of 5651505161 is 1615051565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4534675600 + 1116829561 = 67340^2 + 33419^2 .

It is a cyclic number.

It is not a de Polignac number, because 5651505161 - 2²² = 5647310857 is a prime.

Together with 5651505163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5651505163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2825752580 + 2825752581.

It is an arithmetic number, because the mean of its divisors is an integer number (2825752581).

Almost surely, 2^5651505161 is an apocalyptic number.

It is an amenable number.

5651505161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5651505161 is an equidigital number, since it uses as much as digits as its factorization.

5651505161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 5651505161 is about 75176.4934071815. The cubic root of 5651505161 is about 1781.2356400673.

The spelling of 5651505161 in words is "five billion, six hundred fifty-one million, five hundred five thousand, one hundred sixty-one".