45040555136 has 64 divisors (see below), whose sum is σ = 91468051200. Its totient is φ = 22087188480.

The previous prime is 45040555103. The next prime is 45040555151. The reversal of 45040555136 is 63155504054.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 45040555136.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1741145 + ... + 1766823.

It is an arithmetic number, because the mean of its divisors is an integer number (1429188300).

Almost surely, 2^45040555136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45040555136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45734025600).

45040555136 is an abundant number, since it is smaller than the sum of its proper divisors (46427496064).

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

45040555136 is a wasteful number, since it uses less digits than its factorization.

45040555136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25957 (or 25945 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 45040555136 in words is "forty-five billion, forty million, five hundred fifty-five thousand, one hundred thirty-six".