265552788878 has 16 divisors (see below), whose sum is σ = 428984744496. Its totient is φ = 122558581440.

The previous prime is 265552788869. The next prime is 265552788923. The reversal of 265552788878 is 878887255562.

It is a congruent 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, 663818 + ... + 985778.

It is an arithmetic number, because the mean of its divisors is an integer number (26811546531).

Almost surely, 2^265552788878 is an apocalyptic number.

265552788878 is a deficient number, since it is larger than the sum of its proper divisors (163431955618).

265552788878 is a wasteful number, since it uses less digits than its factorization.

265552788878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353699.

The product of its digits is 602112000, while the sum is 71.

The spelling of 265552788878 in words is "two hundred sixty-five billion, five hundred fifty-two million, seven hundred eighty-eight thousand, eight hundred seventy-eight".