65722466 has 4 divisors (see below), whose sum is σ = 98583702. Its totient is φ = 32861232.

The previous prime is 65722457. The next prime is 65722469. The reversal of 65722466 is 66422756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59367025 + 6355441 = 7705^2 + 2521^2 .

It is not an unprimeable number, because it can be changed into a prime (65722469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16430615 + ... + 16430618.

Almost surely, 2^65722466 is an apocalyptic number.

65722466 is a deficient number, since it is larger than the sum of its proper divisors (32861236).

65722466 is a wasteful number, since it uses less digits than its factorization.

65722466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32861235.

The product of its digits is 120960, while the sum is 38.

The square root of 65722466 is about 8106.9393731543. The cubic root of 65722466 is about 403.5567509021.

The spelling of 65722466 in words is "sixty-five million, seven hundred twenty-two thousand, four hundred sixty-six".