265225666 has 8 divisors (see below), whose sum is σ = 399041424. Its totient is φ = 132211860.

The previous prime is 265225663. The next prime is 265225669. The reversal of 265225666 is 666522562.

It is an interprime number because it is at equal distance from previous prime (265225663) and next prime (265225669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (265225663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199660 + ... + 200983.

It is an arithmetic number, because the mean of its divisors is an integer number (49880178).

Almost surely, 2^265225666 is an apocalyptic number.

265225666 is a deficient number, since it is larger than the sum of its proper divisors (133815758).

265225666 is a wasteful number, since it uses less digits than its factorization.

265225666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400976.

The product of its digits is 259200, while the sum is 40.

The square root of 265225666 is about 16285.7503972031. The cubic root of 265225666 is about 642.4981027161.

The spelling of 265225666 in words is "two hundred sixty-five million, two hundred twenty-five thousand, six hundred sixty-six".