16929236820 has 48 divisors (see below), whose sum is σ = 50190211008. Its totient is φ = 4248906240.

The previous prime is 16929236777. The next prime is 16929236861. The reversal of 16929236820 is 2863292961.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16929236820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8297626 + ... + 8299665.

It is an arithmetic number, because the mean of its divisors is an integer number (1045629396).

Almost surely, 2^16929236820 is an apocalyptic number.

16929236820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16929236820 is an abundant number, since it is smaller than the sum of its proper divisors (33260974188).

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

16929236820 is a wasteful number, since it uses less digits than its factorization.

16929236820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16597320 (or 16597318 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 16929236820 in words is "sixteen billion, nine hundred twenty-nine million, two hundred thirty-six thousand, eight hundred twenty".