65266830 has 64 divisors (see below), whose sum is σ = 175230720. Its totient is φ = 17286048.

The previous prime is 65266829. The next prime is 65266841. The reversal of 65266830 is 3866256.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43269 + ... + 44751.

It is an arithmetic number, because the mean of its divisors is an integer number (2737980).

Almost surely, 2^65266830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65266830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87615360).

65266830 is an abundant number, since it is smaller than the sum of its proper divisors (109963890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65266830 is a wasteful number, since it uses less digits than its factorization.

65266830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 65266830 is about 8078.7888943826. The cubic root of 65266830 is about 402.6220043455.

The spelling of 65266830 in words is "sixty-five million, two hundred sixty-six thousand, eight hundred thirty".