64630245655406 has 16 divisors (see below), whose sum is σ = 98036285497920. Its totient is φ = 31951495994880.

The previous prime is 64630245655397. The next prime is 64630245655421. The reversal of 64630245655406 is 60455654203646.

It is a happy number.

It is a super-2 number, since 2×64630245655406² (a number of 28 digits) contains 22 as substring.

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, 7712891 + ... + 13738601.

It is an arithmetic number, because the mean of its divisors is an integer number (6127267843620).

Almost surely, 2^{64630245655406} is an apocalyptic number.

64630245655406 is a deficient number, since it is larger than the sum of its proper divisors (33406039842514).

64630245655406 is a wasteful number, since it uses less digits than its factorization.

64630245655406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086059.

The product of its (nonzero) digits is 62208000, while the sum is 56.

The spelling of 64630245655406 in words is "sixty-four trillion, six hundred thirty billion, two hundred forty-five million, six hundred fifty-five thousand, four hundred six".