64440016363036 has 24 divisors (see below), whose sum is σ = 112970908312416. Its totient is φ = 32162630734080.

The previous prime is 64440016363027. The next prime is 64440016363087. The reversal of 64440016363036 is 63036361004446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13327776 + ... + 17507416.

It is an arithmetic number, because the mean of its divisors is an integer number (4707121179684).

Almost surely, 2^{64440016363036} is an apocalyptic number.

It is an amenable number.

64440016363036 is a deficient number, since it is larger than the sum of its proper divisors (48530891949380).

64440016363036 is a wasteful number, since it uses less digits than its factorization.

64440016363036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186509 (or 4186507 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 46.

The spelling of 64440016363036 in words is "sixty-four trillion, four hundred forty billion, sixteen million, three hundred sixty-three thousand, thirty-six".