2265278387155 has 8 divisors (see below), whose sum is σ = 3106667502432. Its totient is φ = 1553333751168.

The previous prime is 2265278387147. The next prime is 2265278387167. The reversal of 2265278387155 is 5517838725622.

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 2265278387155 - 2³ = 2265278387147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2265278387093 and 2265278387102.

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, 32361119782 + ... + 32361119851.

It is an arithmetic number, because the mean of its divisors is an integer number (388333437804).

Almost surely, 2^{2265278387155} is an apocalyptic number.

2265278387155 is a deficient number, since it is larger than the sum of its proper divisors (841389115277).

2265278387155 is an equidigital number, since it uses as much as digits as its factorization.

2265278387155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64722239645.

The product of its digits is 56448000, while the sum is 61.

The spelling of 2265278387155 in words is "two trillion, two hundred sixty-five billion, two hundred seventy-eight million, three hundred eighty-seven thousand, one hundred fifty-five".