16573901000 has 32 divisors (see below), whose sum is σ = 38782930680. Its totient is φ = 6629560000.

The previous prime is 16573900979. The next prime is 16573901017. The reversal of 16573901000 is 10937561.

It can be written as a sum of positive squares in 4 ways, for example, as 3030062116 + 13543838884 = 55046^2 + 116378^2 .

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, 8285951 + ... + 8287950.

Almost surely, 2^16573901000 is an apocalyptic number.

16573901000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16573901000 is an abundant number, since it is smaller than the sum of its proper divisors (22209029680).

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

16573901000 is a wasteful number, since it uses less digits than its factorization.

16573901000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16573922 (or 16573908 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The spelling of 16573901000 in words is "sixteen billion, five hundred seventy-three million, nine hundred one thousand".