15278952155 has 8 divisors (see below), whose sum is σ = 18377285184. Its totient is φ = 12194800000.

The previous prime is 15278952149. The next prime is 15278952179. The reversal of 15278952155 is 55125987251.

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

It is not a de Polignac number, because 15278952155 - 2⁸ = 15278951899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542846 + ... + 3547155.

It is an arithmetic number, because the mean of its divisors is an integer number (2297160648).

Almost surely, 2^15278952155 is an apocalyptic number.

15278952155 is a deficient number, since it is larger than the sum of its proper divisors (3098333029).

15278952155 is an equidigital number, since it uses as much as digits as its factorization.

15278952155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090437.

The product of its digits is 1260000, while the sum is 50.

The spelling of 15278952155 in words is "fifteen billion, two hundred seventy-eight million, nine hundred fifty-two thousand, one hundred fifty-five".