18552732606408 has 1536 divisors, whose sum is σ = 66422298378240. Its totient is φ = 4196586240000.

The previous prime is 18552732606347. The next prime is 18552732606427. The reversal of 18552732606408 is 80460623725581.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 97134725593 + ... + 97134725783.

It is an arithmetic number, because the mean of its divisors is an integer number (43243683840).

Almost surely, 2^{18552732606408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18552732606408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33211149189120).

18552732606408 is an abundant number, since it is smaller than the sum of its proper divisors (47869565771832).

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

18552732606408 is a wasteful number, since it uses less digits than its factorization.

18552732606408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 18552732606408 in words is "eighteen trillion, five hundred fifty-two billion, seven hundred thirty-two million, six hundred six thousand, four hundred eight".