18091624565016 has 48 divisors (see below), whose sum is σ = 51128504210160. Its totient is φ = 5768344063680.

The previous prime is 18091624564991. The next prime is 18091624565017. The reversal of 18091624565016 is 61056542619081.

It is a happy number.

18091624565016 is a `hidden beast` number, since 1 + 8 + 0 + 9 + 1 + 62 + 4 + 565 + 0 + 16 = 666.

It is a super-2 number, since 2×18091624565016² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18091624565017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5462445375 + ... + 5462448686.

It is an arithmetic number, because the mean of its divisors is an integer number (1065177171045).

Almost surely, 2^{18091624565016} is an apocalyptic number.

It is an amenable number.

18091624565016 is an abundant number, since it is smaller than the sum of its proper divisors (33036879645144).

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

18091624565016 is a wasteful number, since it uses less digits than its factorization.

18091624565016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10924894096 (or 10924894089 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 18091624565016 in words is "eighteen trillion, ninety-one billion, six hundred twenty-four million, five hundred sixty-five thousand, sixteen".