16505210994 has 16 divisors (see below), whose sum is σ = 33712771968. Its totient is φ = 5384678672.

The previous prime is 16505210993. The next prime is 16505211017. The reversal of 16505210994 is 49901250561.

It is not an unprimeable number, because it can be changed into a prime (16505210993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29264277 + ... + 29264840.

It is an arithmetic number, because the mean of its divisors is an integer number (2107048248).

Almost surely, 2^16505210994 is an apocalyptic number.

16505210994 is an abundant number, since it is smaller than the sum of its proper divisors (17207560974).

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

16505210994 is a wasteful number, since it uses less digits than its factorization.

16505210994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58529169.

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 16505210994 in words is "sixteen billion, five hundred five million, two hundred ten thousand, nine hundred ninety-four".