18665364484470 has 64 divisors (see below), whose sum is σ = 49220895870720. Its totient is φ = 4492383331200.

The previous prime is 18665364484469. The next prime is 18665364484477. The reversal of 18665364484470 is 7448446356681.

It is a super-2 number, since 2×18665364484470² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18665364484477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203413521 + ... + 203505260.

It is an arithmetic number, because the mean of its divisors is an integer number (769076497980).

Almost surely, 2^{18665364484470} is an apocalyptic number.

18665364484470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18665364484470 is an abundant number, since it is smaller than the sum of its proper divisors (30555531386250).

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

18665364484470 is a wasteful number, since it uses less digits than its factorization.

18665364484470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406918941.

The product of its (nonzero) digits is 371589120, while the sum is 66.

The spelling of 18665364484470 in words is "eighteen trillion, six hundred sixty-five billion, three hundred sixty-four million, four hundred eighty-four thousand, four hundred seventy".