116621620344 has 128 divisors (see below), whose sum is σ = 325817856000. Its totient is φ = 38650269312.

The previous prime is 116621620331. The next prime is 116621620369. The reversal of 116621620344 is 443026126611.

116621620344 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 21 + 620 + 3 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 116621620299 and 116621620308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30313029 + ... + 30316875.

It is an arithmetic number, because the mean of its divisors is an integer number (2545452000).

Almost surely, 2^116621620344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116621620344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162908928000).

116621620344 is an abundant number, since it is smaller than the sum of its proper divisors (209196235656).

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

116621620344 is a wasteful number, since it uses less digits than its factorization.

116621620344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 4624 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 116621620344 its reverse (443026126611), we get a palindrome (559647746955).

The spelling of 116621620344 in words is "one hundred sixteen billion, six hundred twenty-one million, six hundred twenty thousand, three hundred forty-four".