64426640060 has 12 divisors (see below), whose sum is σ = 135295944168. Its totient is φ = 25770656016.

The previous prime is 64426640059. The next prime is 64426640093. The reversal of 64426640060 is 6004662446.

It is a junction number, because it is equal to n+sod(n) for n = 64426639996 and 64426640023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610665982 + ... + 1610666021.

It is an arithmetic number, because the mean of its divisors is an integer number (11274662014).

Almost surely, 2^64426640060 is an apocalyptic number.

It is an amenable number.

64426640060 is an abundant number, since it is smaller than the sum of its proper divisors (70869304108).

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

64426640060 is a wasteful number, since it uses less digits than its factorization.

64426640060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221332012 (or 3221332010 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 64426640060 in words is "sixty-four billion, four hundred twenty-six million, six hundred forty thousand, sixty".