16512425647 has 2 divisors, whose sum is σ = 16512425648. Its totient is φ = 16512425646.

The previous prime is 16512425599. The next prime is 16512425753. The reversal of 16512425647 is 74652421561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16512425647 - 2¹⁵ = 16512392879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16512425947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256212823 + 8256212824.

It is an arithmetic number, because the mean of its divisors is an integer number (8256212824).

Almost surely, 2^16512425647 is an apocalyptic number.

16512425647 is a deficient number, since it is larger than the sum of its proper divisors (1).

16512425647 is an equidigital number, since it uses as much as digits as its factorization.

16512425647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 43.

The spelling of 16512425647 in words is "sixteen billion, five hundred twelve million, four hundred twenty-five thousand, six hundred forty-seven".