166166622070 has 8 divisors (see below), whose sum is σ = 299099919744. Its totient is φ = 66466648824.

The previous prime is 166166622067. The next prime is 166166622137. The reversal of 166166622070 is 70226661661.

It is a happy number.

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

It is a super-2 number, since 2×166166622070² (a number of 23 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 in 3 ways as a sum of consecutive naturals, for example, 8308331094 + ... + 8308331113.

It is an arithmetic number, because the mean of its divisors is an integer number (37387489968).

Almost surely, 2^166166622070 is an apocalyptic number.

166166622070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166166622070 is a deficient number, since it is larger than the sum of its proper divisors (132933297674).

166166622070 is a wasteful number, since it uses less digits than its factorization.

166166622070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16616662214.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 166166622070 in words is "one hundred sixty-six billion, one hundred sixty-six million, six hundred twenty-two thousand, seventy".