66212011058 has 4 divisors (see below), whose sum is σ = 99318016590. Its totient is φ = 33106005528.

The previous prime is 66212011051. The next prime is 66212011067. The reversal of 66212011058 is 85011021266.

66212011058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61649413849 + 4562597209 = 248293^2 + 67547^2 .

It is not an unprimeable number, because it can be changed into a prime (66212011051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16553002763 + ... + 16553002766.

Almost surely, 2^66212011058 is an apocalyptic number.

66212011058 is a deficient number, since it is larger than the sum of its proper divisors (33106005532).

66212011058 is a wasteful number, since it uses less digits than its factorization.

66212011058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33106005531.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 66212011058 in words is "sixty-six billion, two hundred twelve million, eleven thousand, fifty-eight".