66373622353 has 4 divisors (see below), whose sum is σ = 66570577060. Its totient is φ = 66176667648.

The previous prime is 66373622333. The next prime is 66373622423. The reversal of 66373622353 is 35322637366.

It is a happy number.

66373622353 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 2 ways, for example, as 4952922129 + 61420700224 = 70377^2 + 247832^2 .

It is a cyclic number.

It is not a de Polignac number, because 66373622353 - 2²⁹ = 65836751441 is a prime.

It is a super-2 number, since 2×66373622353² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66373622333) 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, 98476848 + ... + 98477521.

It is an arithmetic number, because the mean of its divisors is an integer number (16642644265).

Almost surely, 2^66373622353 is an apocalyptic number.

It is an amenable number.

66373622353 is a deficient number, since it is larger than the sum of its proper divisors (196954707).

66373622353 is a wasteful number, since it uses less digits than its factorization.

66373622353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196954706.

The product of its digits is 2449440, while the sum is 46.

The spelling of 66373622353 in words is "sixty-six billion, three hundred seventy-three million, six hundred twenty-two thousand, three hundred fifty-three".