64653083181636 has 24 divisors (see below), whose sum is σ = 150970877016960. Its totient is φ = 21534787309152.

The previous prime is 64653083181619. The next prime is 64653083181667. The reversal of 64653083181636 is 63618138035646.

It is a self number, because there is not a number n which added to its sum of digits gives 64653083181636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030035671 + ... + 2030067518.

It is an arithmetic number, because the mean of its divisors is an integer number (6290453209040).

Almost surely, 2^{64653083181636} is an apocalyptic number.

It is an amenable number.

64653083181636 is an abundant number, since it is smaller than the sum of its proper divisors (86317793835324).

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

64653083181636 is a wasteful number, since it uses less digits than its factorization.

64653083181636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060104523 (or 4060104521 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 60.

The spelling of 64653083181636 in words is "sixty-four trillion, six hundred fifty-three billion, eighty-three million, one hundred eighty-one thousand, six hundred thirty-six".