66146912293 has 8 divisors (see below), whose sum is σ = 82468877760. Its totient is φ = 51543048480.

The previous prime is 66146912281. The next prime is 66146912309. The reversal of 66146912293 is 39221964166.

66146912293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66146912293 - 2²¹ = 66144815141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66146910293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429525328 + ... + 429525481.

It is an arithmetic number, because the mean of its divisors is an integer number (10308609720).

Almost surely, 2^66146912293 is an apocalyptic number.

It is an amenable number.

66146912293 is a deficient number, since it is larger than the sum of its proper divisors (16321965467).

66146912293 is a wasteful number, since it uses less digits than its factorization.

66146912293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859050827.

The product of its digits is 839808, while the sum is 49.

The spelling of 66146912293 in words is "sixty-six billion, one hundred forty-six million, nine hundred twelve thousand, two hundred ninety-three".