15651594851 has 2 divisors, whose sum is σ = 15651594852. Its totient is φ = 15651594850.

The previous prime is 15651594841. The next prime is 15651594853. The reversal of 15651594851 is 15849515651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15651594851 - 2¹⁰ = 15651593827 is a prime.

Together with 15651594853, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15651594851.

It is not a weakly prime, because it can be changed into another prime (15651594853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7825797425 + 7825797426.

It is an arithmetic number, because the mean of its divisors is an integer number (7825797426).

Almost surely, 2^15651594851 is an apocalyptic number.

15651594851 is a deficient number, since it is larger than the sum of its proper divisors (1).

15651594851 is an equidigital number, since it uses as much as digits as its factorization.

15651594851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080000, while the sum is 50.

The spelling of 15651594851 in words is "fifteen billion, six hundred fifty-one million, five hundred ninety-four thousand, eight hundred fifty-one".