66377463466 has 4 divisors (see below), whose sum is σ = 99566195202. Its totient is φ = 33188731732.

The previous prime is 66377463457. The next prime is 66377463487. The reversal of 66377463466 is 66436477366.

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., 43249441225 + 23128022241 = 207965^2 + 152079^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66377463466.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16594365865 + ... + 16594365868.

Almost surely, 2^66377463466 is an apocalyptic number.

66377463466 is a deficient number, since it is larger than the sum of its proper divisors (33188731736).

66377463466 is a wasteful number, since it uses less digits than its factorization.

66377463466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33188731735.

The product of its digits is 54867456, while the sum is 58.

The spelling of 66377463466 in words is "sixty-six billion, three hundred seventy-seven million, four hundred sixty-three thousand, four hundred sixty-six".