66234848772 has 12 divisors (see below), whose sum is σ = 154547980496. Its totient is φ = 22078282920.

The previous prime is 66234848761. The next prime is 66234848777. The reversal of 66234848772 is 27784843266.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 2759785354 + ... + 2759785377.

Almost surely, 2^66234848772 is an apocalyptic number.

It is an amenable number.

66234848772 is an abundant number, since it is smaller than the sum of its proper divisors (88313131724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66234848772 is a wasteful number, since it uses less digits than its factorization.

66234848772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519570738 (or 5519570736 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 57.

The spelling of 66234848772 in words is "sixty-six billion, two hundred thirty-four million, eight hundred forty-eight thousand, seven hundred seventy-two".