168672828650 has 24 divisors (see below), whose sum is σ = 313790895264. Its totient is φ = 67456350000.

The previous prime is 168672828647. The next prime is 168672828691. The reversal of 168672828650 is 56828276861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 168672828650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50726 + ... + 583025.

It is an arithmetic number, because the mean of its divisors is an integer number (13074620636).

Almost surely, 2^168672828650 is an apocalyptic number.

168672828650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168672828650 is a deficient number, since it is larger than the sum of its proper divisors (145118066614).

168672828650 is a wasteful number, since it uses less digits than its factorization.

168672828650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639086 (or 639081 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 168672828650 in words is "one hundred sixty-eight billion, six hundred seventy-two million, eight hundred twenty-eight thousand, six hundred fifty".