16610568393 has 4 divisors (see below), whose sum is σ = 22147424528. Its totient is φ = 11073712260.

The previous prime is 16610568389. The next prime is 16610568413. The reversal of 16610568393 is 39386501661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16610568393 - 2² = 16610568389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16610563393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768428063 + ... + 2768428068.

It is an arithmetic number, because the mean of its divisors is an integer number (5536856132).

Almost surely, 2^16610568393 is an apocalyptic number.

It is an amenable number.

16610568393 is a deficient number, since it is larger than the sum of its proper divisors (5536856135).

16610568393 is an equidigital number, since it uses as much as digits as its factorization.

16610568393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536856134.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 16610568393 in words is "sixteen billion, six hundred ten million, five hundred sixty-eight thousand, three hundred ninety-three".