265140436533656 has 64 divisors (see below), whose sum is σ = 498801897646080. Its totient is φ = 132127441729920.

The previous prime is 265140436533653. The next prime is 265140436533701. The reversal of 265140436533656 is 656335634041562.

It is a junction number, because it is equal to n+sod(n) for n = 265140436533595 and 265140436533604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265140436533653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12657670175 + ... + 12657691121.

It is an arithmetic number, because the mean of its divisors is an integer number (7793779650720).

Almost surely, 2^{265140436533656} is an apocalyptic number.

It is an amenable number.

265140436533656 is a deficient number, since it is larger than the sum of its proper divisors (233661461112424).

265140436533656 is a wasteful number, since it uses less digits than its factorization.

265140436533656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25744 (or 25740 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 59.

The spelling of 265140436533656 in words is "two hundred sixty-five trillion, one hundred forty billion, four hundred thirty-six million, five hundred thirty-three thousand, six hundred fifty-six".