45340255521 has 80 divisors (see below), whose sum is σ = 76361237568. Its totient is φ = 26571888000.

The previous prime is 45340255517. The next prime is 45340255529. The reversal of 45340255521 is 12555204354.

45340255521 is a `hidden beast` number, since 45 + 3 + 40 + 2 + 55 + 521 = 666.

45340255521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45340255521 - 2² = 45340255517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45340255529) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3863755 + ... + 3875471.

Almost surely, 2^45340255521 is an apocalyptic number.

It is an amenable number.

45340255521 is a deficient number, since it is larger than the sum of its proper divisors (31020982047).

45340255521 is a wasteful number, since it uses less digits than its factorization.

45340255521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11884 (or 11875 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 45340255521 its reverse (12555204354), we get a palindrome (57895459875).

The spelling of 45340255521 in words is "forty-five billion, three hundred forty million, two hundred fifty-five thousand, five hundred twenty-one".