16004636454 has 16 divisors (see below), whose sum is σ = 32874388848. Its totient is φ = 5190692832.

The previous prime is 16004636449. The next prime is 16004636477. The reversal of 16004636454 is 45463640061.

It is a super-2 number, since 2×16004636454² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36046257 + ... + 36046700.

It is an arithmetic number, because the mean of its divisors is an integer number (2054649303).

Almost surely, 2^16004636454 is an apocalyptic number.

16004636454 is an abundant number, since it is smaller than the sum of its proper divisors (16869752394).

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

16004636454 is a wasteful number, since it uses less digits than its factorization.

16004636454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72092999.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 16004636454 in words is "sixteen billion, four million, six hundred thirty-six thousand, four hundred fifty-four".