64564260616430 has 64 divisors (see below), whose sum is σ = 121600840660992. Its totient is φ = 24663307361280.

The previous prime is 64564260616399. The next prime is 64564260616451. The reversal of 64564260616430 is 3461606246546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6736304 + ... + 13210083.

It is an arithmetic number, because the mean of its divisors is an integer number (1900013135328).

Almost surely, 2^{64564260616430} is an apocalyptic number.

64564260616430 is a deficient number, since it is larger than the sum of its proper divisors (57036580044562).

64564260616430 is a wasteful number, since it uses less digits than its factorization.

64564260616430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19946609.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 64564260616430 in words is "sixty-four trillion, five hundred sixty-four billion, two hundred sixty million, six hundred sixteen thousand, four hundred thirty".