5646641644 has 48 divisors (see below), whose sum is σ = 11490425856. Its totient is φ = 2377972800.

The previous prime is 5646641639. The next prime is 5646641659. The reversal of 5646641644 is 4461466465.

It is a junction number, because it is equal to n+sod(n) for n = 5646641594 and 5646641603.

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, 613702 + ... + 622834.

It is an arithmetic number, because the mean of its divisors is an integer number (239383872).

Almost surely, 2^5646641644 is an apocalyptic number.

It is an amenable number.

5646641644 is an abundant number, since it is smaller than the sum of its proper divisors (5843784212).

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

5646641644 is a wasteful number, since it uses less digits than its factorization.

5646641644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9526 (or 9524 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 46.

The square root of 5646641644 is about 75144.1391194283. The cubic root of 5646641644 is about 1780.7245339803.

The spelling of 5646641644 in words is "five billion, six hundred forty-six million, six hundred forty-one thousand, six hundred forty-four".