64248464661 has 16 divisors (see below), whose sum is σ = 89790038016. Its totient is φ = 40786303536.

The previous prime is 64248464653. The next prime is 64248464669. The reversal of 64248464661 is 16646484246.

64248464661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64248464653) and next prime (64248464669).

It is not a de Polignac number, because 64248464661 - 2³ = 64248464653 is a prime.

It is a super-2 number, since 2×64248464661² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64248464669) 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, 2072365 + ... + 2103138.

It is an arithmetic number, because the mean of its divisors is an integer number (5611877376).

Almost surely, 2^64248464661 is an apocalyptic number.

It is an amenable number.

64248464661 is a deficient number, since it is larger than the sum of its proper divisors (25541573355).

64248464661 is a wasteful number, since it uses less digits than its factorization.

64248464661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175752.

The product of its digits is 5308416, while the sum is 51.

The spelling of 64248464661 in words is "sixty-four billion, two hundred forty-eight million, four hundred sixty-four thousand, six hundred sixty-one".