166851835002 has 24 divisors (see below), whose sum is σ = 363601982484. Its totient is φ = 55295790144.

The previous prime is 166851834997. The next prime is 166851835009. The reversal of 166851835002 is 200538158661.

166851835002 is a `hidden beast` number, since 1 + 6 + 68 + 5 + 1 + 83 + 500 + 2 = 666.

166851835002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 165967426881 + 884408121 = 407391^2 + 29739^2 .

It is not an unprimeable number, because it can be changed into a prime (166851835009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26787483 + ... + 26793710.

Almost surely, 2^166851835002 is an apocalyptic number.

166851835002 is an abundant number, since it is smaller than the sum of its proper divisors (196750147482).

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

166851835002 is a wasteful number, since it uses less digits than its factorization.

166851835002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53581374 (or 53581371 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 166851835002 in words is "one hundred sixty-six billion, eight hundred fifty-one million, eight hundred thirty-five thousand, two".