45115445115405 has 48 divisors (see below), whose sum is σ = 90162447148800. Its totient is φ = 20441688390144.

The previous prime is 45115445115359. The next prime is 45115445115443. The reversal of 45115445115405 is 50451154451154.

It is a happy number.

45115445115405 is a `hidden beast` number, since 4 + 5 + 1 + 1 + 54 + 4 + 51 + 1 + 540 + 5 = 666.

It is not a de Polignac number, because 45115445115405 - 2¹² = 45115445111309 is a prime.

It is a super-2 number, since 2×45115445115405² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 633697305 + ... + 633768494.

It is an arithmetic number, because the mean of its divisors is an integer number (1878384315600).

Almost surely, 2^{45115445115405} is an apocalyptic number.

45115445115405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45115445115405 is a deficient number, since it is larger than the sum of its proper divisors (45047002033395).

45115445115405 is a wasteful number, since it uses less digits than its factorization.

45115445115405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267465930 (or 1267465927 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 45.

Adding to 45115445115405 its reverse (50451154451154), we get a palindrome (95566599566559).

The spelling of 45115445115405 in words is "forty-five trillion, one hundred fifteen billion, four hundred forty-five million, one hundred fifteen thousand, four hundred five".