42166604326 has 32 divisors (see below), whose sum is σ = 78877193472. Its totient is φ = 16424345760.

The previous prime is 42166604323. The next prime is 42166604327. The reversal of 42166604326 is 62340666124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42166604323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607245 + ... + 673111.

It is an arithmetic number, because the mean of its divisors is an integer number (2464912296).

Almost surely, 2^42166604326 is an apocalyptic number.

42166604326 is a deficient number, since it is larger than the sum of its proper divisors (36710589146).

42166604326 is a wasteful number, since it uses less digits than its factorization.

42166604326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70044.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 42166604326 in words is "forty-two billion, one hundred sixty-six million, six hundred four thousand, three hundred twenty-six".