15478154400155 has 4 divisors (see below), whose sum is σ = 18573785280192. Its totient is φ = 12382523520120.

The previous prime is 15478154400143. The next prime is 15478154400179. The reversal of 15478154400155 is 55100445187451.

15478154400155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15478154400155 - 2²⁶ = 15478087291291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547815440011 + ... + 1547815440020.

It is an arithmetic number, because the mean of its divisors is an integer number (4643446320048).

Almost surely, 2^{15478154400155} is an apocalyptic number.

15478154400155 is a deficient number, since it is larger than the sum of its proper divisors (3095630880037).

15478154400155 is an equidigital number, since it uses as much as digits as its factorization.

15478154400155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095630880036.

The product of its (nonzero) digits is 2240000, while the sum is 50.

The spelling of 15478154400155 in words is "fifteen trillion, four hundred seventy-eight billion, one hundred fifty-four million, four hundred thousand, one hundred fifty-five".