1123637598720 has 1920 divisors, whose sum is σ = 5188851892224. Its totient is φ = 226504802304.

The previous prime is 1123637598701. The next prime is 1123637598737. The reversal of 1123637598720 is 278957363211.

1123637598720 is a `hidden beast` number, since 1 + 1 + 23 + 6 + 3 + 7 + 598 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a super-2 number, since 2×1123637598720² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1302013009 + ... + 1302013871.

Almost surely, 2^{1123637598720} is an apocalyptic number.

1123637598720 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 1123637598720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2594425946112).

1123637598720 is an abundant number, since it is smaller than the sum of its proper divisors (4065214293504).

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

1123637598720 is an equidigital number, since it uses as much as digits as its factorization.

1123637598720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 1123637598720 in words is "one trillion, one hundred twenty-three billion, six hundred thirty-seven million, five hundred ninety-eight thousand, seven hundred twenty".