66234848771 has 16 divisors (see below), whose sum is σ = 81970219968. Its totient is φ = 52116048000.

The previous prime is 66234848761. The next prime is 66234848777. The reversal of 66234848771 is 17784843266.

It is a cyclic number.

It is not a de Polignac number, because 66234848771 - 2³⁴ = 49054979587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66234848777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1994180 + ... + 2027121.

It is an arithmetic number, because the mean of its divisors is an integer number (5123138748).

Almost surely, 2^66234848771 is an apocalyptic number.

66234848771 is a deficient number, since it is larger than the sum of its proper divisors (15735371197).

66234848771 is a wasteful number, since it uses less digits than its factorization.

66234848771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021502.

The product of its digits is 10838016, while the sum is 56.

The spelling of 66234848771 in words is "sixty-six billion, two hundred thirty-four million, eight hundred forty-eight thousand, seven hundred seventy-one".