1099974835320 has 256 divisors, whose sum is σ = 3542608742400. Its totient is φ = 272548700160.

The previous prime is 1099974835303. The next prime is 1099974835321. The reversal of 1099974835320 is 235384799901.

It is a super-2 number, since 2×1099974835320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099974835321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26345421 + ... + 26387139.

It is an arithmetic number, because the mean of its divisors is an integer number (13838315400).

Almost surely, 2^{1099974835320} is an apocalyptic number.

1099974835320 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 1099974835320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771304371200).

1099974835320 is an abundant number, since it is smaller than the sum of its proper divisors (2442633907080).

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

1099974835320 is a wasteful number, since it uses less digits than its factorization.

1099974835320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42030 (or 42026 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 1099974835320 in words is "one trillion, ninety-nine billion, nine hundred seventy-four million, eight hundred thirty-five thousand, three hundred twenty".