64024644666426 has 16 divisors (see below), whose sum is σ = 128086329955584. Its totient is φ = 21335374785024.

The previous prime is 64024644666379. The next prime is 64024644666431. The reversal of 64024644666426 is 62466644642046.

It is a super-2 number, since 2×64024644666426² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64024644666426.

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, 1543336810 + ... + 1543378293.

It is an arithmetic number, because the mean of its divisors is an integer number (8005395622224).

Almost surely, 2^{64024644666426} is an apocalyptic number.

64024644666426 is an abundant number, since it is smaller than the sum of its proper divisors (64061685289158).

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

64024644666426 is a wasteful number, since it uses less digits than its factorization.

64024644666426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086718565.

The product of its (nonzero) digits is 191102976, while the sum is 60.

The spelling of 64024644666426 in words is "sixty-four trillion, twenty-four billion, six hundred forty-four million, six hundred sixty-six thousand, four hundred twenty-six".