111837962640 has 320 divisors, whose sum is σ = 373976064000. Its totient is φ = 27558807552.

The previous prime is 111837962629. The next prime is 111837962647. The reversal of 111837962640 is 46269738111.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 111837962640.

It is not an unprimeable number, because it can be changed into a prime (111837962647) 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, 79940661 + ... + 79942059.

It is an arithmetic number, because the mean of its divisors is an integer number (1168675200).

Almost surely, 2^111837962640 is an apocalyptic number.

111837962640 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 111837962640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186988032000).

111837962640 is an abundant number, since it is smaller than the sum of its proper divisors (262138101360).

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

111837962640 is a wasteful number, since it uses less digits than its factorization.

111837962640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 111837962640 in words is "one hundred eleven billion, eight hundred thirty-seven million, nine hundred sixty-two thousand, six hundred forty".