64630245655405 has 8 divisors (see below), whose sum is σ = 77557374081792. Its totient is φ = 51703476994128.

The previous prime is 64630245655397. The next prime is 64630245655421. The reversal of 64630245655405 is 50455654203646.

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 64630245655405 - 2³ = 64630245655397 is a prime.

It is a Duffinian number.

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, 89545897 + ... + 90264766.

It is an arithmetic number, because the mean of its divisors is an integer number (9694671760224).

Almost surely, 2^{64630245655405} is an apocalyptic number.

It is an amenable number.

64630245655405 is a deficient number, since it is larger than the sum of its proper divisors (12927128426387).

64630245655405 is a wasteful number, since it uses less digits than its factorization.

64630245655405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179882555.

The product of its (nonzero) digits is 51840000, while the sum is 55.

The spelling of 64630245655405 in words is "sixty-four trillion, six hundred thirty billion, two hundred forty-five million, six hundred fifty-five thousand, four hundred five".