66464236 has 12 divisors (see below), whose sum is σ = 117951120. Its totient is φ = 32763920.

The previous prime is 66464231. The next prime is 66464243. The reversal of 66464236 is 63246466.

It is a junction number, because it is equal to n+sod(n) for n = 66464195 and 66464204.

It is not an unprimeable number, because it can be changed into a prime (66464231) 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, 116731 + ... + 117298.

It is an arithmetic number, because the mean of its divisors is an integer number (9829260).

Almost surely, 2^66464236 is an apocalyptic number.

It is an amenable number.

66464236 is a deficient number, since it is larger than the sum of its proper divisors (51486884).

66464236 is a wasteful number, since it uses less digits than its factorization.

66464236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234104 (or 234102 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 66464236 is about 8152.5600887083. The cubic root of 66464236 is about 405.0693088719.

The spelling of 66464236 in words is "sixty-six million, four hundred sixty-four thousand, two hundred thirty-six".