64356272000 has 128 divisors (see below), whose sum is σ = 160306080480. Its totient is φ = 25694208000.

The previous prime is 64356271957. The next prime is 64356272039. The reversal of 64356272000 is 27265346.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9228515 + ... + 9235485.

Almost surely, 2^64356272000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64356272000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80153040240).

64356272000 is an abundant number, since it is smaller than the sum of its proper divisors (95949808480).

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

64356272000 is an equidigital number, since it uses as much as digits as its factorization.

64356272000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577 (or 7555 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 64356272000 in words is "sixty-four billion, three hundred fifty-six million, two hundred seventy-two thousand".