66753563466 has 16 divisors (see below), whose sum is σ = 133543878624. Its totient is φ = 22245062544.

The previous prime is 66753563423. The next prime is 66753563477. The reversal of 66753563466 is 66436535766.

It is a happy number.

66753563466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1507680 + ... + 1551323.

It is an arithmetic number, because the mean of its divisors is an integer number (8346492414).

Almost surely, 2^66753563466 is an apocalyptic number.

66753563466 is an abundant number, since it is smaller than the sum of its proper divisors (66790315158).

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

66753563466 is a wasteful number, since it uses less digits than its factorization.

66753563466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062645.

The product of its digits is 48988800, while the sum is 57.

The spelling of 66753563466 in words is "sixty-six billion, seven hundred fifty-three million, five hundred sixty-three thousand, four hundred sixty-six".