64642466264060 has 48 divisors (see below), whose sum is σ = 137171913250176. Its totient is φ = 25586079946752.

The previous prime is 64642466264053. The next prime is 64642466264069. The reversal of 64642466264060 is 6046266424646.

It is a junction number, because it is equal to n+sod(n) for n = 64642466263987 and 64642466264005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64642466264069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8629454 + ... + 14274186.

It is an arithmetic number, because the mean of its divisors is an integer number (2857748192712).

Almost surely, 2^{64642466264060} is an apocalyptic number.

It is an amenable number.

64642466264060 is an abundant number, since it is smaller than the sum of its proper divisors (72529446986116).

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

64642466264060 is a wasteful number, since it uses less digits than its factorization.

64642466264060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650742 (or 5650740 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 56.

The spelling of 64642466264060 in words is "sixty-four trillion, six hundred forty-two billion, four hundred sixty-six million, two hundred sixty-four thousand, sixty".