16735420818 has 48 divisors (see below), whose sum is σ = 38179421280. Its totient is φ = 5283358272.

The previous prime is 16735420763. The next prime is 16735420831. The reversal of 16735420818 is 81802453761.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2323030 + ... + 2330222.

It is an arithmetic number, because the mean of its divisors is an integer number (795404610).

Almost surely, 2^16735420818 is an apocalyptic number.

16735420818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16735420818 is an abundant number, since it is smaller than the sum of its proper divisors (21444000462).

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

16735420818 is a wasteful number, since it uses less digits than its factorization.

16735420818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14023 (or 14020 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 16735420818 in words is "sixteen billion, seven hundred thirty-five million, four hundred twenty thousand, eight hundred eighteen".