104891680064 has 28 divisors (see below), whose sum is σ = 213769957524. Its totient is φ = 51028383744.

The previous prime is 104891679989. The next prime is 104891680087. The reversal of 104891680064 is 460086198401.

It can be written as a sum of positive squares in 2 ways, for example, as 37079353600 + 67812326464 = 192560^2 + 260408^2 .

It is a super-2 number, since 2×104891680064² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22145369 + ... + 22150104.

Almost surely, 2^104891680064 is an apocalyptic number.

It is an amenable number.

104891680064 is an abundant number, since it is smaller than the sum of its proper divisors (108878277460).

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

104891680064 is an equidigital number, since it uses as much as digits as its factorization.

104891680064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44295522 (or 44295512 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 104891680064 in words is "one hundred four billion, eight hundred ninety-one million, six hundred eighty thousand, sixty-four".