45320116644 has 72 divisors (see below), whose sum is σ = 126141751008. Its totient is φ = 13605006720.

The previous prime is 45320116631. The next prime is 45320116661. The reversal of 45320116644 is 44661102354.

45320116644 is a `hidden beast` number, since 4 + 5 + 3 + 2 + 0 + 1 + 1 + 6 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 45320116599 and 45320116608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 492417 + ... + 577160.

It is an arithmetic number, because the mean of its divisors is an integer number (1751968764).

Almost surely, 2^45320116644 is an apocalyptic number.

45320116644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

45320116644 is an abundant number, since it is smaller than the sum of its proper divisors (80821634364).

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

45320116644 is a wasteful number, since it uses less digits than its factorization.

45320116644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069705 (or 1069700 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 45320116644 its reverse (44661102354), we get a palindrome (89981218998).

The spelling of 45320116644 in words is "forty-five billion, three hundred twenty million, one hundred sixteen thousand, six hundred forty-four".