5161016511 has 12 divisors (see below), whose sum is σ = 8519773392. Its totient is φ = 2949152256.

The previous prime is 5161016507. The next prime is 5161016533. The reversal of 5161016511 is 1156101615.

5161016511 is a `hidden beast` number, since 5 + 1 + 6 + 1 + 0 + 1 + 651 + 1 = 666.

It is not a de Polignac number, because 5161016511 - 2² = 5161016507 is a prime.

It is a super-2 number, since 2×5161016511² = 53272182853629226242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161016551) 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, 40960386 + ... + 40960511.

It is an arithmetic number, because the mean of its divisors is an integer number (709981116).

Almost surely, 2^5161016511 is an apocalyptic number.

5161016511 is a deficient number, since it is larger than the sum of its proper divisors (3358756881).

5161016511 is a wasteful number, since it uses less digits than its factorization.

5161016511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81920910 (or 81920907 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 5161016511 is about 71840.2151374841. The cubic root of 5161016511 is about 1728.1379846973.

It can be divided in two parts, 51610 and 16511, that added together give a square (68121 = 261²).

The spelling of 5161016511 in words is "five billion, one hundred sixty-one million, sixteen thousand, five hundred eleven".