16000634405644 has 96 divisors (see below), whose sum is σ = 32704363560960. Its totient is φ = 6707936996352.

The previous prime is 16000634405621. The next prime is 16000634405669. The reversal of 16000634405644 is 44650443600061.

It is a super-2 number, since 2×16000634405644² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16000634405644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637793269 + ... + 637818355.

It is an arithmetic number, because the mean of its divisors is an integer number (340670453760).

Almost surely, 2^{16000634405644} is an apocalyptic number.

16000634405644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16000634405644 is an abundant number, since it is smaller than the sum of its proper divisors (16703729155316).

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

16000634405644 is a wasteful number, since it uses less digits than its factorization.

16000634405644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27047 (or 27045 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 16000634405644 in words is "sixteen trillion, six hundred thirty-four million, four hundred five thousand, six hundred forty-four".