264861656 has 8 divisors (see below), whose sum is σ = 496615620. Its totient is φ = 132430824.

The previous prime is 264861643. The next prime is 264861659. The reversal of 264861656 is 656168462.

264861656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264861659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16553846 + ... + 16553861.

Almost surely, 2^264861656 is an apocalyptic number.

It is an amenable number.

264861656 is a deficient number, since it is larger than the sum of its proper divisors (231753964).

264861656 is a wasteful number, since it uses less digits than its factorization.

264861656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33107713 (or 33107709 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 264861656 is about 16274.5708391957. The cubic root of 264861656 is about 642.2040351345.

The spelling of 264861656 in words is "two hundred sixty-four million, eight hundred sixty-one thousand, six hundred fifty-six".