180208019992 has 128 divisors (see below), whose sum is σ = 473395829760. Its totient is φ = 61992184320.

The previous prime is 180208019941. The next prime is 180208020019. The reversal of 180208019992 is 299910802081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305023 + ... + 673390.

It is an arithmetic number, because the mean of its divisors is an integer number (3698404920).

Almost surely, 2^180208019992 is an apocalyptic number.

It is an amenable number.

180208019992 is an abundant number, since it is smaller than the sum of its proper divisors (293187809768).

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

180208019992 is a wasteful number, since it uses less digits than its factorization.

180208019992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978473 (or 978469 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 180208019992 in words is "one hundred eighty billion, two hundred eight million, nineteen thousand, nine hundred ninety-two".