64000556441 has 8 divisors (see below), whose sum is σ = 67377216480. Its totient is φ = 60624717408.

The previous prime is 64000556429. The next prime is 64000556443. The reversal of 64000556441 is 14465500046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64000556441 - 2²⁶ = 63933447577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64000556443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41891 + ... + 360216.

It is an arithmetic number, because the mean of its divisors is an integer number (8422152060).

Almost surely, 2^64000556441 is an apocalyptic number.

It is an amenable number.

64000556441 is a deficient number, since it is larger than the sum of its proper divisors (3376660039).

64000556441 is a wasteful number, since it uses less digits than its factorization.

64000556441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410503.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 64000556441 in words is "sixty-four billion, five hundred fifty-six thousand, four hundred forty-one".