66420460460426 has 8 divisors (see below), whose sum is σ = 99634371663360. Its totient is φ = 33209003239308.

The previous prime is 66420460460411. The next prime is 66420460460503. The reversal of 66420460460426 is 62406406402466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613427786 + ... + 613536053.

It is an arithmetic number, because the mean of its divisors is an integer number (12454296457920).

Almost surely, 2^{66420460460426} is an apocalyptic number.

66420460460426 is a deficient number, since it is larger than the sum of its proper divisors (33213911202934).

66420460460426 is a wasteful number, since it uses less digits than its factorization.

66420460460426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226990908.

The product of its (nonzero) digits is 7962624, while the sum is 50.

The spelling of 66420460460426 in words is "sixty-six trillion, four hundred twenty billion, four hundred sixty million, four hundred sixty thousand, four hundred twenty-six".