64501002400 has 72 divisors (see below), whose sum is σ = 165750641280. Its totient is φ = 24442479360.

The previous prime is 64501002367. The next prime is 64501002427. The reversal of 64501002400 is 420010546.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2106544 + ... + 2136943.

It is an arithmetic number, because the mean of its divisors is an integer number (2302092240).

Almost surely, 2^64501002400 is an apocalyptic number.

It is an amenable number.

64501002400 is an abundant number, since it is smaller than the sum of its proper divisors (101249638880).

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

64501002400 is a wasteful number, since it uses less digits than its factorization.

64501002400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243526 (or 4243513 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 64501002400 its reverse (420010546), we get a palindrome (64921012946).

The spelling of 64501002400 in words is "sixty-four billion, five hundred one million, two thousand, four hundred".