18364558650322 has 24 divisors (see below), whose sum is σ = 29782075670172. Its totient is φ = 8486830684800.

The previous prime is 18364558650259. The next prime is 18364558650329. The reversal of 18364558650322 is 22305685546381.

It can be written as a sum of positive squares in 2 ways, for example, as 17290369432561 + 1074189217761 = 4158169^2 + 1036431^2 .

It is a super-2 number, since 2×18364558650322² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18364558650329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310161579 + ... + 310220782.

Almost surely, 2^{18364558650322} is an apocalyptic number.

18364558650322 is a deficient number, since it is larger than the sum of its proper divisors (11417517019850).

18364558650322 is a wasteful number, since it uses less digits than its factorization.

18364558650322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620382442 (or 620382423 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 58.

The spelling of 18364558650322 in words is "eighteen trillion, three hundred sixty-four billion, five hundred fifty-eight million, six hundred fifty thousand, three hundred twenty-two".