15345645455 has 8 divisors (see below), whose sum is σ = 21045456672. Its totient is φ = 10522728288.

The previous prime is 15345645449. The next prime is 15345645457. The reversal of 15345645455 is 55454654351.

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 not a de Polignac number, because 15345645455 - 2⁸ = 15345645199 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 (15345645457) 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, 219223472 + ... + 219223541.

It is an arithmetic number, because the mean of its divisors is an integer number (2630682084).

Almost surely, 2^15345645455 is an apocalyptic number.

15345645455 is a deficient number, since it is larger than the sum of its proper divisors (5699811217).

15345645455 is an equidigital number, since it uses as much as digits as its factorization.

15345645455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438447025.

The product of its digits is 3600000, while the sum is 47.

The spelling of 15345645455 in words is "fifteen billion, three hundred forty-five million, six hundred forty-five thousand, four hundred fifty-five".