1080618992640 has 1056 divisors, whose sum is σ = 4233330676224. Its totient is φ = 252574433280.

The previous prime is 1080618992639. The next prime is 1080618992669. The reversal of 1080618992640 is 462998160801.

1080618992640 is a `hidden beast` number, since 10 + 8 + 0 + 618 + 9 + 9 + 2 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2944465737 + ... + 2944466103.

Almost surely, 2^{1080618992640} is an apocalyptic number.

1080618992640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1080618992640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2116665338112).

1080618992640 is an abundant number, since it is smaller than the sum of its proper divisors (3152711683584).

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

1080618992640 is a wasteful number, since it uses less digits than its factorization.

1080618992640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 1080618992640 in words is "one trillion, eighty billion, six hundred eighteen million, nine hundred ninety-two thousand, six hundred forty".