16601426794 has 16 divisors (see below), whose sum is σ = 25036446600. Its totient is φ = 8255971584.

The previous prime is 16601426791. The next prime is 16601426801. The reversal of 16601426794 is 49762410661.

It can be written as a sum of positive squares in 4 ways, for example, as 16480140625 + 121286169 = 128375^2 + 11013^2 .

It is a super-2 number, since 2×16601426794² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16601426791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2048302 + ... + 2056390.

Almost surely, 2^16601426794 is an apocalyptic number.

16601426794 is a deficient number, since it is larger than the sum of its proper divisors (8435019806).

16601426794 is a wasteful number, since it uses less digits than its factorization.

16601426794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 16601426794 in words is "sixteen billion, six hundred one million, four hundred twenty-six thousand, seven hundred ninety-four".