10511051651 has 4 divisors (see below), whose sum is σ = 10659094704. Its totient is φ = 10363008600.

The previous prime is 10511051647. The next prime is 10511051687. The reversal of 10511051651 is 15615011501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10511051651 - 2² = 10511051647 is a prime.

It is a super-2 number, since 2×10511051651² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10511051651.

It is not an unprimeable number, because it can be changed into a prime (10511051851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74021420 + ... + 74021561.

It is an arithmetic number, because the mean of its divisors is an integer number (2664773676).

Almost surely, 2^10511051651 is an apocalyptic number.

10511051651 is a deficient number, since it is larger than the sum of its proper divisors (148043053).

10511051651 is an equidigital number, since it uses as much as digits as its factorization.

10511051651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148043052.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 10511051651 in words is "ten billion, five hundred eleven million, fifty-one thousand, six hundred fifty-one".