868166635002 has 16 divisors (see below), whose sum is σ = 1736530529472. Its totient is φ = 289356001760.

The previous prime is 868166634989. The next prime is 868166635003. The reversal of 868166635002 is 200536661868.

868166635002 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 2×868166635002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868166635003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8161899 + ... + 8267582.

It is an arithmetic number, because the mean of its divisors is an integer number (108533158092).

Almost surely, 2^868166635002 is an apocalyptic number.

868166635002 is an abundant number, since it is smaller than the sum of its proper divisors (868363894470).

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

868166635002 is a wasteful number, since it uses less digits than its factorization.

868166635002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16438293.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 868166635002 in words is "eight hundred sixty-eight billion, one hundred sixty-six million, six hundred thirty-five thousand, two".