66476142416 has 20 divisors (see below), whose sum is σ = 130611577824. Its totient is φ = 32769928800.

The previous prime is 66476142391. The next prime is 66476142419. The reversal of 66476142416 is 61424167466.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66476142419) 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, 29257730 + ... + 29260001.

Almost surely, 2^66476142416 is an apocalyptic number.

It is an amenable number.

66476142416 is a deficient number, since it is larger than the sum of its proper divisors (64135435408).

66476142416 is a wasteful number, since it uses less digits than its factorization.

66476142416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58517810 (or 58517804 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The spelling of 66476142416 in words is "sixty-six billion, four hundred seventy-six million, one hundred forty-two thousand, four hundred sixteen".