2651166513 has 12 divisors (see below), whose sum is σ = 3932962228. Its totient is φ = 1719675360.

The previous prime is 2651166493. The next prime is 2651166517. The reversal of 2651166513 is 3156611562.

2651166513 is a `hidden beast` number, since 26 + 5 + 116 + 6 + 513 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2006412849 + 644753664 = 44793^2 + 25392^2 .

It is not a de Polignac number, because 2651166513 - 2⁵ = 2651166481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2651166517) 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, 3980398 + ... + 3981063.

Almost surely, 2^2651166513 is an apocalyptic number.

It is an amenable number.

2651166513 is a deficient number, since it is larger than the sum of its proper divisors (1281795715).

2651166513 is a wasteful number, since it uses less digits than its factorization.

2651166513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961504 (or 7961501 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 2651166513 is about 51489.4796341932. The cubic root of 2651166513 is about 1384.0305245211.

The spelling of 2651166513 in words is "two billion, six hundred fifty-one million, one hundred sixty-six thousand, five hundred thirteen".