16855460802 has 64 divisors (see below), whose sum is σ = 38924928000. Its totient is φ = 5400673920.

The previous prime is 16855460773. The next prime is 16855460807. The reversal of 16855460802 is 20806455861.

16855460802 is a `hidden beast` number, since 1 + 68 + 55 + 460 + 80 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (16855460807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215638 + ... + 283214.

It is an arithmetic number, because the mean of its divisors is an integer number (608202000).

Almost surely, 2^16855460802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16855460802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19462464000).

16855460802 is an abundant number, since it is smaller than the sum of its proper divisors (22069467198).

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

16855460802 is a wasteful number, since it uses less digits than its factorization.

16855460802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67768 (or 67762 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 16855460802 in words is "sixteen billion, eight hundred fifty-five million, four hundred sixty thousand, eight hundred two".