66405233250466 has 32 divisors (see below), whose sum is σ = 110675653724160. Its totient is φ = 29626738174800.

The previous prime is 66405233250449. The next prime is 66405233250481.

66405233250466 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38696250 + ... + 40375861.

It is an arithmetic number, because the mean of its divisors is an integer number (3458614178880).

Almost surely, 2^{66405233250466} is an apocalyptic number.

66405233250466 is a deficient number, since it is larger than the sum of its proper divisors (44270420473694).

66405233250466 is a wasteful number, since it uses less digits than its factorization.

66405233250466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79072830.

The product of its (nonzero) digits is 18662400, while the sum is 52.

It can be divided in two parts, 6640523 and 3250466, that added together give a palindrome (9890989).

The spelling of 66405233250466 in words is "sixty-six trillion, four hundred five billion, two hundred thirty-three million, two hundred fifty thousand, four hundred sixty-six".