2665087651 has 2 divisors, whose sum is σ = 2665087652. Its totient is φ = 2665087650.

The previous prime is 2665087631. The next prime is 2665087657. The reversal of 2665087651 is 1567805662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2665087651 is a prime.

It is not a weakly prime, because it can be changed into another prime (2665087657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332543825 + 1332543826.

It is an arithmetic number, because the mean of its divisors is an integer number (1332543826).

Almost surely, 2^2665087651 is an apocalyptic number.

2665087651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665087651 is an equidigital number, since it uses as much as digits as its factorization.

2665087651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 2665087651 is about 51624.4869320752. The cubic root of 2665087651 is about 1386.4487875813.

The spelling of 2665087651 in words is "two billion, six hundred sixty-five million, eighty-seven thousand, six hundred fifty-one".