45561215999 has 8 divisors (see below), whose sum is σ = 49524486480. Its totient is φ = 41663454336.

The previous prime is 45561215701. The next prime is 45561216013. The reversal of 45561215999 is 99951216554.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45561215999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45561215099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16375754 + ... + 16378535.

It is an arithmetic number, because the mean of its divisors is an integer number (6190560810).

Almost surely, 2^45561215999 is an apocalyptic number.

45561215999 is a deficient number, since it is larger than the sum of its proper divisors (3963270481).

45561215999 is a wasteful number, since it uses less digits than its factorization.

45561215999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32754409.

The product of its digits is 4374000, while the sum is 56.

The spelling of 45561215999 in words is "forty-five billion, five hundred sixty-one million, two hundred fifteen thousand, nine hundred ninety-nine".