80102590640 has 40 divisors (see below), whose sum is σ = 186529186368. Its totient is φ = 31991029760.

The previous prime is 80102590639. The next prime is 80102590651. The reversal of 80102590640 is 4609520108.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 80102590640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729752 + ... + 832311.

Almost surely, 2^80102590640 is an apocalyptic number.

80102590640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80102590640 is an abundant number, since it is smaller than the sum of its proper divisors (106426595728).

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

80102590640 is a wasteful number, since it uses less digits than its factorization.

80102590640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562717 (or 1562711 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 80102590640 in words is "eighty billion, one hundred two million, five hundred ninety thousand, six hundred forty".