16809962940 has 48 divisors (see below), whose sum is σ = 52297664160. Its totient is φ = 4482656640.

The previous prime is 16809962927. The next prime is 16809962957. The reversal of 16809962940 is 4926990861.

16809962940 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 9 + 9 + 629 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15564241 + ... + 15565320.

It is an arithmetic number, because the mean of its divisors is an integer number (1089534670).

Almost surely, 2^16809962940 is an apocalyptic number.

16809962940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16809962940 is an abundant number, since it is smaller than the sum of its proper divisors (35487701220).

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

16809962940 is a wasteful number, since it uses less digits than its factorization.

16809962940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31129579 (or 31129571 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 16809962940 in words is "sixteen billion, eight hundred nine million, nine hundred sixty-two thousand, nine hundred forty".