1109632553680 has 120 divisors (see below), whose sum is σ = 3001459956768. Its totient is φ = 380400217344.

The previous prime is 1109632553663. The next prime is 1109632553683. The reversal of 1109632553680 is 863552369011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109632553683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64855687 + ... + 64872793.

Almost surely, 2^{1109632553680} is an apocalyptic number.

1109632553680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109632553680 is an abundant number, since it is smaller than the sum of its proper divisors (1891827403088).

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

1109632553680 is a wasteful number, since it uses less digits than its factorization.

1109632553680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33681 (or 33668 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 1109632553680 in words is "one trillion, one hundred nine billion, six hundred thirty-two million, five hundred fifty-three thousand, six hundred eighty".