808099697664 has 352 divisors, whose sum is σ = 2829419078400. Its totient is φ = 222922506240.

The previous prime is 808099697641. The next prime is 808099697687. The reversal of 808099697664 is 466796990808.

It is an interprime number because it is at equal distance from previous prime (808099697641) and next prime (808099697687).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 808099697592 and 808099697601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5540554 + ... + 5684534.

Almost surely, 2^808099697664 is an apocalyptic number.

808099697664 is a gapful number since it is divisible by the number (84) 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 808099697664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414709539200).

808099697664 is an abundant number, since it is smaller than the sum of its proper divisors (2021319380736).

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

808099697664 is a wasteful number, since it uses less digits than its factorization.

808099697664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144046 (or 144022 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 808099697664 in words is "eight hundred eight billion, ninety-nine million, six hundred ninety-seven thousand, six hundred sixty-four".