108783451656 has 640 divisors, whose sum is σ = 380780611200. Its totient is φ = 28575866880.

The previous prime is 108783451649. The next prime is 108783451663. The reversal of 108783451656 is 656154387801.

It is a happy number.

108783451656 is a `hidden beast` number, since 1 + 0 + 8 + 78 + 3 + 4 + 516 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (108783451649) and next prime (108783451663).

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

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, 85186090 + ... + 85187366.

It is an arithmetic number, because the mean of its divisors is an integer number (594969705).

Almost surely, 2^108783451656 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 108783451656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190390305600).

108783451656 is an abundant number, since it is smaller than the sum of its proper divisors (271997159544).

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

108783451656 is a wasteful number, since it uses less digits than its factorization.

108783451656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 108783451656 in words is "one hundred eight billion, seven hundred eighty-three million, four hundred fifty-one thousand, six hundred fifty-six".