265370465655 has 16 divisors (see below), whose sum is σ = 471769716960. Its totient is φ = 141530914944.

The previous prime is 265370465627. The next prime is 265370465663. The reversal of 265370465655 is 556564073562.

265370465655 is a `hidden beast` number, since 2 + 6 + 5 + 3 + 70 + 4 + 6 + 565 + 5 = 666.

It is not a de Polignac number, because 265370465655 - 2⁷ = 265370465527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982853442 + ... + 982853711.

It is an arithmetic number, because the mean of its divisors is an integer number (29485607310).

Almost surely, 2^265370465655 is an apocalyptic number.

265370465655 is a deficient number, since it is larger than the sum of its proper divisors (206399251305).

265370465655 is a wasteful number, since it uses less digits than its factorization.

265370465655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965707167 (or 1965707161 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 54.

It can be divided in two parts, 265370 and 465655, that added together give a square (731025 = 855²).

The spelling of 265370465655 in words is "two hundred sixty-five billion, three hundred seventy million, four hundred sixty-five thousand, six hundred fifty-five".