18091624564992 has 72 divisors (see below), whose sum is σ = 52527387255840. Its totient is φ = 5482310471680.

The previous prime is 18091624564991. The next prime is 18091624565017. The reversal of 18091624564992 is 29946542619081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (18091624564991) 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, 1070755317 + ... + 1070772212.

It is an arithmetic number, because the mean of its divisors is an integer number (729547045220).

Almost surely, 2^{18091624564992} is an apocalyptic number.

18091624564992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18091624564992 is an abundant number, since it is smaller than the sum of its proper divisors (34435762690848).

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

18091624564992 is a wasteful number, since it uses less digits than its factorization.

18091624564992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141527559 (or 2141527545 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 18091624564992 in words is "eighteen trillion, ninety-one billion, six hundred twenty-four million, five hundred sixty-four thousand, nine hundred ninety-two".