180064969920 has 1120 divisors, whose sum is σ = 753607514880. Its totient is φ = 40340643840.

The previous prime is 180064969891. The next prime is 180064970027. The reversal of 180064969920 is 29969460081.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 232942654 + ... + 232943426.

Almost surely, 2^180064969920 is an apocalyptic number.

180064969920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180064969920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376803757440).

180064969920 is an abundant number, since it is smaller than the sum of its proper divisors (573542544960).

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

180064969920 is a wasteful number, since it uses less digits than its factorization.

180064969920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 180064969920 in words is "one hundred eighty billion, sixty-four million, nine hundred sixty-nine thousand, nine hundred twenty".