265661805046 has 16 divisors (see below), whose sum is σ = 435583588608. Its totient is φ = 120515290600.

The previous prime is 265661805041. The next prime is 265661805053. The reversal of 265661805046 is 640508166562.

It is a super-2 number, since 2×265661805046² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265661805041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11992450 + ... + 12014581.

It is an arithmetic number, because the mean of its divisors is an integer number (27223974288).

Almost surely, 2^265661805046 is an apocalyptic number.

265661805046 is a deficient number, since it is larger than the sum of its proper divisors (169921783562).

265661805046 is a wasteful number, since it uses less digits than its factorization.

265661805046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24007547.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 265661805046 in words is "two hundred sixty-five billion, six hundred sixty-one million, eight hundred five thousand, forty-six".