68804165540 has 48 divisors (see below), whose sum is σ = 160208121024. Its totient is φ = 24609532800.

The previous prime is 68804165533. The next prime is 68804165543. The reversal of 68804165540 is 4556140886.

It is not an unprimeable number, because it can be changed into a prime (68804165543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2550074 + ... + 2576913.

It is an arithmetic number, because the mean of its divisors is an integer number (3337669188).

Almost surely, 2^68804165540 is an apocalyptic number.

It is an amenable number.

68804165540 is an abundant number, since it is smaller than the sum of its proper divisors (91403955484).

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

68804165540 is a wasteful number, since it uses less digits than its factorization.

68804165540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5127068 (or 5127066 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 68804165540 in words is "sixty-eight billion, eight hundred four million, one hundred sixty-five thousand, five hundred forty".