1265614442655 has 32 divisors (see below), whose sum is σ = 2068884025344. Its totient is φ = 660372066816.

The previous prime is 1265614442621. The next prime is 1265614442669. The reversal of 1265614442655 is 5562444165621.

It is not a de Polignac number, because 1265614442655 - 2¹⁶ = 1265614377119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1265614442598 and 1265614442607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1439847 + ... + 2145783.

It is an arithmetic number, because the mean of its divisors is an integer number (64652625792).

Almost surely, 2^{1265614442655} is an apocalyptic number.

1265614442655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1265614442655 is a deficient number, since it is larger than the sum of its proper divisors (803269582689).

1265614442655 is a wasteful number, since it uses less digits than its factorization.

1265614442655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708535.

The product of its digits is 6912000, while the sum is 51.

The spelling of 1265614442655 in words is "one trillion, two hundred sixty-five billion, six hundred fourteen million, four hundred forty-two thousand, six hundred fifty-five".