166212877826 has 8 divisors (see below), whose sum is σ = 260159287104. Its totient is φ = 79493115460.

The previous prime is 166212877811. The next prime is 166212877837. The reversal of 166212877826 is 628778212661.

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

It is a Curzon number.

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, 1806661670 + ... + 1806661761.

It is an arithmetic number, because the mean of its divisors is an integer number (32519910888).

Almost surely, 2^166212877826 is an apocalyptic number.

166212877826 is a deficient number, since it is larger than the sum of its proper divisors (93946409278).

166212877826 is a wasteful number, since it uses less digits than its factorization.

166212877826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613323456.

The product of its digits is 5419008, while the sum is 56.

The spelling of 166212877826 in words is "one hundred sixty-six billion, two hundred twelve million, eight hundred seventy-seven thousand, eight hundred twenty-six".