1102644990720 has 1440 divisors, whose sum is σ = 5112365153280. Its totient is φ = 220365619200.

The previous prime is 1102644990703. The next prime is 1102644990737. The reversal of 1102644990720 is 270994462011.

1102644990720 is a `hidden beast` number, since 110 + 2 + 6 + 449 + 90 + 7 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1102644990703) and next prime (1102644990737).

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×1102644990720² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 179259645 + ... + 179265795.

Almost surely, 2^{1102644990720} is an apocalyptic number.

1102644990720 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 1102644990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2556182576640).

1102644990720 is an abundant number, since it is smaller than the sum of its proper divisors (4009720162560).

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

1102644990720 is a wasteful number, since it uses less digits than its factorization.

1102644990720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223 (or 6200 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 1102644990720 in words is "one trillion, one hundred two billion, six hundred forty-four million, nine hundred ninety thousand, seven hundred twenty".