64430970609560 has 128 divisors (see below), whose sum is σ = 158458380157440. Its totient is φ = 23472488448000.

The previous prime is 64430970609541. The next prime is 64430970609571. The reversal of 64430970609560 is 6590607903446.

64430970609560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64430970609560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388990760 + ... + 389156360.

It is an arithmetic number, because the mean of its divisors is an integer number (1237956094980).

Almost surely, 2^{64430970609560} 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 64430970609560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79229190078720).

64430970609560 is an abundant number, since it is smaller than the sum of its proper divisors (94027409547880).

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

64430970609560 is a wasteful number, since it uses less digits than its factorization.

64430970609560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184117 (or 184113 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 59.

The spelling of 64430970609560 in words is "sixty-four trillion, four hundred thirty billion, nine hundred seventy million, six hundred nine thousand, five hundred sixty".