100644526080 has 2304 divisors, whose sum is σ = 484009344000. Its totient is φ = 19619905536.

The previous prime is 100644526079. The next prime is 100644526091. The reversal of 100644526080 is 80625446001.

100644526080 is a `hidden beast` number, since 1 + 0 + 0 + 6 + 4 + 45 + 2 + 608 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4375848949 + ... + 4375848971.

It is an arithmetic number, because the mean of its divisors is an integer number (210073500).

Almost surely, 2^100644526080 is an apocalyptic number.

100644526080 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 100644526080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242004672000).

100644526080 is an abundant number, since it is smaller than the sum of its proper divisors (383364817920).

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

100644526080 is a wasteful number, since it uses less digits than its factorization.

100644526080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 100644526080 in words is "one hundred billion, six hundred forty-four million, five hundred twenty-six thousand, eighty".