16572702493 has 2 divisors, whose sum is σ = 16572702494. Its totient is φ = 16572702492.

The previous prime is 16572702479. The next prime is 16572702511. The reversal of 16572702493 is 39420727561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13465977849 + 3106724644 = 116043^2 + 55738^2 .

It is a cyclic number.

It is not a de Polignac number, because 16572702493 - 2²⁵ = 16539148061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16572702593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286351246 + 8286351247.

It is an arithmetic number, because the mean of its divisors is an integer number (8286351247).

Almost surely, 2^16572702493 is an apocalyptic number.

It is an amenable number.

16572702493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16572702493 is an equidigital number, since it uses as much as digits as its factorization.

16572702493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 16572702493 in words is "sixteen billion, five hundred seventy-two million, seven hundred two thousand, four hundred ninety-three".