16802817045642 has 64 divisors (see below), whose sum is σ = 38963780075520. Its totient is φ = 5357320095600.

The previous prime is 16802817045551. The next prime is 16802817045643. The reversal of 16802817045642 is 24654071820861.

16802817045642 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 2 + 8 + 1 + 70 + 4 + 564 + 2 = 666.

16802817045642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16802817045642² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (16802817045643) 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, 96131667 + ... + 96306297.

It is an arithmetic number, because the mean of its divisors is an integer number (608809063680).

Almost surely, 2^{16802817045642} is an apocalyptic number.

16802817045642 is an abundant number, since it is smaller than the sum of its proper divisors (22160963029878).

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

16802817045642 is a wasteful number, since it uses less digits than its factorization.

16802817045642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252136 (or 252130 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 16802817045642 in words is "sixteen trillion, eight hundred two billion, eight hundred seventeen million, forty-five thousand, six hundred forty-two".