16723590426 has 32 divisors (see below), whose sum is σ = 37864739520. Its totient is φ = 5469349392.

The previous prime is 16723590413. The next prime is 16723590427. The reversal of 16723590426 is 62409532761.

16723590426 is a `hidden beast` number, since 16 + 7 + 2 + 3 + 590 + 42 + 6 = 666.

It is a super-2 number, since 2×16723590426² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16723590427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2918800 + ... + 2924523.

It is an arithmetic number, because the mean of its divisors is an integer number (1183273110).

Almost surely, 2^16723590426 is an apocalyptic number.

16723590426 is an abundant number, since it is smaller than the sum of its proper divisors (21141149094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16723590426 is a wasteful number, since it uses less digits than its factorization.

16723590426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843387 (or 5843381 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 16723590426 in words is "sixteen billion, seven hundred twenty-three million, five hundred ninety thousand, four hundred twenty-six".