16193507904 has 112 divisors (see below), whose sum is σ = 54406800000. Its totient is φ = 4626713088.

The previous prime is 16193507893. The next prime is 16193507909. The reversal of 16193507904 is 40970539161.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 16193507904.

It is not an unprimeable number, because it can be changed into a prime (16193507909) 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, 657279 + ... + 681470.

It is an arithmetic number, because the mean of its divisors is an integer number (485775000).

Almost surely, 2^16193507904 is an apocalyptic number.

16193507904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16193507904 is an abundant number, since it is smaller than the sum of its proper divisors (38213292096).

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

16193507904 is a wasteful number, since it uses less digits than its factorization.

16193507904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338777 (or 1338761 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 16193507904 in words is "sixteen billion, one hundred ninety-three million, five hundred seven thousand, nine hundred four".