168344583780 has 48 divisors (see below), whose sum is σ = 471601206720. Its totient is φ = 44869377408.

The previous prime is 168344583773. The next prime is 168344583811. The reversal of 168344583780 is 87385443861.

It is a super-2 number, since 2×168344583780² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168344583780.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582670 + ... + 822309.

It is an arithmetic number, because the mean of its divisors is an integer number (9825025140).

Almost surely, 2^168344583780 is an apocalyptic number.

168344583780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168344583780 is an abundant number, since it is smaller than the sum of its proper divisors (303256622940).

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

168344583780 is a wasteful number, since it uses less digits than its factorization.

168344583780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406988 (or 1406986 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 168344583780 in words is "one hundred sixty-eight billion, three hundred forty-four million, five hundred eighty-three thousand, seven hundred eighty".