65700818 has 16 divisors (see below), whose sum is σ = 106777440. Its totient is φ = 30198336.

The previous prime is 65700809. The next prime is 65700827. The reversal of 65700818 is 81800756.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65700809) and next prime (65700827).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21008 + ... + 23931.

It is an arithmetic number, because the mean of its divisors is an integer number (6673590).

Almost surely, 2^65700818 is an apocalyptic number.

65700818 is a deficient number, since it is larger than the sum of its proper divisors (41076622).

65700818 is a wasteful number, since it uses less digits than its factorization.

65700818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45001.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 65700818 is about 8105.6041107372. The cubic root of 65700818 is about 403.5124375116.

The spelling of 65700818 in words is "sixty-five million, seven hundred thousand, eight hundred eighteen".