66146111064 has 96 divisors (see below), whose sum is σ = 195475971600. Its totient is φ = 20039735040.

The previous prime is 66146111041. The next prime is 66146111153. The reversal of 66146111064 is 46011164166.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5548342 + ... + 5560250.

Almost surely, 2^66146111064 is an apocalyptic number.

It is an amenable number.

66146111064 is an abundant number, since it is smaller than the sum of its proper divisors (129329860536).

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

66146111064 is a wasteful number, since it uses less digits than its factorization.

66146111064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18945 (or 18938 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 66146111064 in words is "sixty-six billion, one hundred forty-six million, one hundred eleven thousand, sixty-four".