808978160 has 40 divisors (see below), whose sum is σ = 1882074480. Its totient is φ = 323384832.

The previous prime is 808978151. The next prime is 808978169. The reversal of 808978160 is 61879808.

It is an interprime number because it is at equal distance from previous prime (808978151) and next prime (808978169).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808978169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212756 + ... + 216524.

It is an arithmetic number, because the mean of its divisors is an integer number (47051862).

Almost surely, 2^808978160 is an apocalyptic number.

808978160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

808978160 is an abundant number, since it is smaller than the sum of its proper divisors (1073096320).

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

808978160 is a wasteful number, since it uses less digits than its factorization.

808978160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465 (or 6459 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 808978160 is about 28442.5413773102. The cubic root of 808978160 is about 931.7775998651. Note that the first 3 decimals are identical.

The spelling of 808978160 in words is "eight hundred eight million, nine hundred seventy-eight thousand, one hundred sixty".