45331321545 has 40 divisors (see below), whose sum is σ = 83881923840. Its totient is φ = 23396804640.

The previous prime is 45331321531. The next prime is 45331321571. The reversal of 45331321545 is 54512313354.

45331321545 is a `hidden beast` number, since 4 + 53 + 31 + 32 + 1 + 545 = 666.

45331321545 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 45331321545 - 2¹¹ = 45331319497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1792755 + ... + 1817864.

It is an arithmetic number, because the mean of its divisors is an integer number (2097048096).

Almost surely, 2^45331321545 is an apocalyptic number.

45331321545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45331321545 is a deficient number, since it is larger than the sum of its proper divisors (38550602295).

45331321545 is a wasteful number, since it uses less digits than its factorization.

45331321545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610667 (or 3610658 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 45331321545 its reverse (54512313354), we get a palindrome (99843634899).

The spelling of 45331321545 in words is "forty-five billion, three hundred thirty-one million, three hundred twenty-one thousand, five hundred forty-five".