64554520343 has 8 divisors (see below), whose sum is σ = 65226252000. Its totient is φ = 63882915840.

The previous prime is 64554520339. The next prime is 64554520357. The reversal of 64554520343 is 34302545546.

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 64554520343 - 2² = 64554520339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64554520343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64554520543) 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, 1260038 + ... + 1310268.

It is an arithmetic number, because the mean of its divisors is an integer number (8153281500).

Almost surely, 2^64554520343 is an apocalyptic number.

64554520343 is a deficient number, since it is larger than the sum of its proper divisors (671731657).

64554520343 is a wasteful number, since it uses less digits than its factorization.

64554520343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63577.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 64554520343 in words is "sixty-four billion, five hundred fifty-four million, five hundred twenty thousand, three hundred forty-three".