71666922 has 8 divisors (see below), whose sum is σ = 143333856. Its totient is φ = 23888972.

The previous prime is 71666899. The next prime is 71666941. The reversal of 71666922 is 22966617.

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

71666922 is an admirable number.

It is a super-2 number, since 2×71666922² = 10272295417908168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5972238 + ... + 5972249.

It is an arithmetic number, because the mean of its divisors is an integer number (17916732).

Almost surely, 2^71666922 is an apocalyptic number.

71666922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71666922 is a wasteful number, since it uses less digits than its factorization.

71666922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11944492.

The product of its digits is 54432, while the sum is 39.

The square root of 71666922 is about 8465.6318133970. The cubic root of 71666922 is about 415.3742634278.

The spelling of 71666922 in words is "seventy-one million, six hundred sixty-six thousand, nine hundred twenty-two".