265661036 has 12 divisors (see below), whose sum is σ = 477472128. Its totient is φ = 129240432.

The previous prime is 265660973. The next prime is 265661101. The reversal of 265661036 is 630166562.

It is a junction number, because it is equal to n+sod(n) for n = 265660987 and 265661005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897356 + ... + 897651.

It is an arithmetic number, because the mean of its divisors is an integer number (39789344).

Almost surely, 2^265661036 is an apocalyptic number.

It is an amenable number.

265661036 is a deficient number, since it is larger than the sum of its proper divisors (211811092).

265661036 is a wasteful number, since it uses less digits than its factorization.

265661036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795048 (or 1795046 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 265661036 is about 16299.1115095271. Note that the first 3 decimals coincide. The cubic root of 265661036 is about 642.8494657472.

The spelling of 265661036 in words is "two hundred sixty-five million, six hundred sixty-one thousand, thirty-six".