16631012051 has 2 divisors, whose sum is σ = 16631012052. Its totient is φ = 16631012050.

The previous prime is 16631012039. The next prime is 16631012129. The reversal of 16631012051 is 15021013661.

It is a weak prime.

It is an emirp because it is prime and its reverse (15021013661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16631012051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16631012051.

It is not a weakly prime, because it can be changed into another prime (16631012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8315506025 + 8315506026.

It is an arithmetic number, because the mean of its divisors is an integer number (8315506026).

Almost surely, 2^16631012051 is an apocalyptic number.

16631012051 is a deficient number, since it is larger than the sum of its proper divisors (1).

16631012051 is an equidigital number, since it uses as much as digits as its factorization.

16631012051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 16631012051 in words is "sixteen billion, six hundred thirty-one million, twelve thousand, fifty-one".