64466344656426 has 64 divisors (see below), whose sum is σ = 133174774656000. Its totient is φ = 20782635264000.

The previous prime is 64466344656421. The next prime is 64466344656433. The reversal of 64466344656426 is 62465644366446.

It is a super-2 number, since 2×64466344656426² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64466344656421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2984404026 + ... + 2984425626.

It is an arithmetic number, because the mean of its divisors is an integer number (2080855854000).

Almost surely, 2^{64466344656426} is an apocalyptic number.

64466344656426 is an abundant number, since it is smaller than the sum of its proper divisors (68708429999574).

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

64466344656426 is a wasteful number, since it uses less digits than its factorization.

64466344656426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30895.

The product of its digits is 1433272320, while the sum is 66.

The spelling of 64466344656426 in words is "sixty-four trillion, four hundred sixty-six billion, three hundred forty-four million, six hundred fifty-six thousand, four hundred twenty-six".