16086810640 has 20 divisors (see below), whose sum is σ = 37401834924. Its totient is φ = 6434724224.

The previous prime is 16086810559. The next prime is 16086810659. The reversal of 16086810640 is 4601868061.

It can be written as a sum of positive squares in 2 ways, for example, as 6692548864 + 9394261776 = 81808^2 + 96924^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 16086810593 and 16086810602.

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, 100542487 + ... + 100542646.

Almost surely, 2^16086810640 is an apocalyptic number.

16086810640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16086810640 is an abundant number, since it is smaller than the sum of its proper divisors (21315024284).

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

16086810640 is a wasteful number, since it uses less digits than its factorization.

16086810640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201085146 (or 201085140 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 16086810640 in words is "sixteen billion, eighty-six million, eight hundred ten thousand, six hundred forty".