15920130623 has 2 divisors, whose sum is σ = 15920130624. Its totient is φ = 15920130622.

The previous prime is 15920130617. The next prime is 15920130643. The reversal of 15920130623 is 32603102951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15920130623 - 2⁶ = 15920130559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15920130623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15920130643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7960065311 + 7960065312.

It is an arithmetic number, because the mean of its divisors is an integer number (7960065312).

Almost surely, 2^15920130623 is an apocalyptic number.

15920130623 is a deficient number, since it is larger than the sum of its proper divisors (1).

15920130623 is an equidigital number, since it uses as much as digits as its factorization.

15920130623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 15920130623 in words is "fifteen billion, nine hundred twenty million, one hundred thirty thousand, six hundred twenty-three".