45440515455 has 96 divisors (see below), whose sum is σ = 78362665920. Its totient is φ = 22469314560.

The previous prime is 45440515453. The next prime is 45440515469. The reversal of 45440515455 is 55451504454.

It is a happy number.

It is not a de Polignac number, because 45440515455 - 2¹ = 45440515453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45440515451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64090641 + ... + 64091349.

It is an arithmetic number, because the mean of its divisors is an integer number (816277770).

Almost surely, 2^45440515455 is an apocalyptic number.

45440515455 is a deficient number, since it is larger than the sum of its proper divisors (32922150465).

45440515455 is a wasteful number, since it uses less digits than its factorization.

45440515455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 42.

The spelling of 45440515455 in words is "forty-five billion, four hundred forty million, five hundred fifteen thousand, four hundred fifty-five".