66624023341 has 4 divisors (see below), whose sum is σ = 69520720032. Its totient is φ = 63727326652.

The previous prime is 66624023329. The next prime is 66624023363. The reversal of 66624023341 is 14332042666.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66624023341 - 2¹⁹ = 66623499053 is a prime.

It is a super-2 number, since 2×66624023341² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66624023341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66624023371) 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, 1448348311 + ... + 1448348356.

It is an arithmetic number, because the mean of its divisors is an integer number (17380180008).

Almost surely, 2^66624023341 is an apocalyptic number.

It is an amenable number.

66624023341 is a deficient number, since it is larger than the sum of its proper divisors (2896696691).

66624023341 is a wasteful number, since it uses less digits than its factorization.

66624023341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896696690.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 66624023341 in words is "sixty-six billion, six hundred twenty-four million, twenty-three thousand, three hundred forty-one".