42664326206 has 4 divisors (see below), whose sum is σ = 63996489312. Its totient is φ = 21332163102.

The previous prime is 42664326157. The next prime is 42664326239. The reversal of 42664326206 is 60262346624.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×42664326206² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666081550 + ... + 10666081553.

It is an arithmetic number, because the mean of its divisors is an integer number (15999122328).

Almost surely, 2^42664326206 is an apocalyptic number.

42664326206 is a deficient number, since it is larger than the sum of its proper divisors (21332163106).

42664326206 is a wasteful number, since it uses less digits than its factorization.

42664326206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332163105.

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 42664326206 in words is "forty-two billion, six hundred sixty-four million, three hundred twenty-six thousand, two hundred six".