64642266626060 has 48 divisors (see below), whose sum is σ = 137346018374880. Its totient is φ = 25552971671040.

The previous prime is 64642266626053. The next prime is 64642266626101. The reversal of 64642266626060 is 6062666224646.

It is a super-2 number, since 2×64642266626060² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64642266625987 and 64642266626005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6127271 + ... + 12916190.

It is an arithmetic number, because the mean of its divisors is an integer number (2861375382810).

Almost surely, 2^{64642266626060} is an apocalyptic number.

It is an amenable number.

64642266626060 is an abundant number, since it is smaller than the sum of its proper divisors (72703751748820).

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

64642266626060 is a wasteful number, since it uses less digits than its factorization.

64642266626060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19045466 (or 19045464 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 56.

The spelling of 64642266626060 in words is "sixty-four trillion, six hundred forty-two billion, two hundred sixty-six million, six hundred twenty-six thousand, sixty".