66055126372 has 6 divisors (see below), whose sum is σ = 115596471158. Its totient is φ = 33027563184.

The previous prime is 66055126369. The next prime is 66055126409. The reversal of 66055126372 is 27362155066.

66055126372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 56503191616 + 9551934756 = 237704^2 + 97734^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256890793 + ... + 8256890800.

Almost surely, 2^66055126372 is an apocalyptic number.

It is an amenable number.

66055126372 is a deficient number, since it is larger than the sum of its proper divisors (49541344786).

66055126372 is a wasteful number, since it uses less digits than its factorization.

66055126372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16513781597 (or 16513781595 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 66055126372 in words is "sixty-six billion, fifty-five million, one hundred twenty-six thousand, three hundred seventy-two".