5646637920 has 192 divisors, whose sum is σ = 22176032256. Its totient is φ = 1173319680.

The previous prime is 5646637897. The next prime is 5646637921. The reversal of 5646637920 is 297366465.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 5646637920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646637921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39429 + ... + 113348.

It is an arithmetic number, because the mean of its divisors is an integer number (115500168).

Almost surely, 2^5646637920 is an apocalyptic number.

It is an amenable number.

5646637920 is an abundant number, since it is smaller than the sum of its proper divisors (16529394336).

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

5646637920 is a wasteful number, since it uses less digits than its factorization.

5646637920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152813 (or 152805 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The square root of 5646637920 is about 75144.1143403793. The cubic root of 5646637920 is about 1780.7241425134.

The spelling of 5646637920 in words is "five billion, six hundred forty-six million, six hundred thirty-seven thousand, nine hundred twenty".