15614121445 has 24 divisors (see below), whose sum is σ = 20566394856. Its totient is φ = 11312740608.

The previous prime is 15614121443. The next prime is 15614121469. The reversal of 15614121445 is 54412141651.

It can be written as a sum of positive squares in 12 ways, for example, as 937768129 + 14676353316 = 30623^2 + 121146^2 .

It is not a de Polignac number, because 15614121445 - 2¹ = 15614121443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15614121445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15614121443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139827 + ... + 225343.

It is an arithmetic number, because the mean of its divisors is an integer number (856933119).

Almost surely, 2^15614121445 is an apocalyptic number.

It is an amenable number.

15614121445 is a deficient number, since it is larger than the sum of its proper divisors (4952273411).

15614121445 is an equidigital number, since it uses as much as digits as its factorization.

15614121445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85641 (or 85588 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The spelling of 15614121445 in words is "fifteen billion, six hundred fourteen million, one hundred twenty-one thousand, four hundred forty-five".