42664110646 has 8 divisors (see below), whose sum is σ = 64018684584. Its totient is φ = 21324549120.

The previous prime is 42664110611. The next prime is 42664110647. The reversal of 42664110646 is 64601146624.

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

It is a junction number, because it is equal to n+sod(n) for n = 42664110599 and 42664110608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42664110647) 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, 3745995 + ... + 3757366.

It is an arithmetic number, because the mean of its divisors is an integer number (8002335573).

Almost surely, 2^42664110646 is an apocalyptic number.

42664110646 is a deficient number, since it is larger than the sum of its proper divisors (21354573938).

42664110646 is a wasteful number, since it uses less digits than its factorization.

42664110646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506206.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 42664110646 in words is "forty-two billion, six hundred sixty-four million, one hundred ten thousand, six hundred forty-six".