66632774434 has 8 divisors (see below), whose sum is σ = 100270542528. Its totient is φ = 33209260260.

The previous prime is 66632774419. The next prime is 66632774459. The reversal of 66632774434 is 43447723666.

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, 53562702 + ... + 53563945.

It is an arithmetic number, because the mean of its divisors is an integer number (12533817816).

Almost surely, 2^66632774434 is an apocalyptic number.

66632774434 is a deficient number, since it is larger than the sum of its proper divisors (33637768094).

66632774434 is a wasteful number, since it uses less digits than its factorization.

66632774434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107126960.

The product of its digits is 12192768, while the sum is 52.

The spelling of 66632774434 in words is "sixty-six billion, six hundred thirty-two million, seven hundred seventy-four thousand, four hundred thirty-four".