6495066400 has 72 divisors (see below), whose sum is σ = 16690650480. Its totient is φ = 2461282560.

The previous prime is 6495066397. The next prime is 6495066407. The reversal of 6495066400 is 46605946.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (6495066407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198454 + ... + 228853.

It is an arithmetic number, because the mean of its divisors is an integer number (231814590).

Almost surely, 2^6495066400 is an apocalyptic number.

It is an amenable number.

6495066400 is an abundant number, since it is smaller than the sum of its proper divisors (10195584080).

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

6495066400 is a wasteful number, since it uses less digits than its factorization.

6495066400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427346 (or 427333 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 6495066400 is about 80591.9747865754. The cubic root of 6495066400 is about 1865.7832866643.

The spelling of 6495066400 in words is "six billion, four hundred ninety-five million, sixty-six thousand, four hundred".