68571966 has 32 divisors (see below), whose sum is σ = 142023168. Its totient is φ = 22057920.

The previous prime is 68571953. The next prime is 68571973. The reversal of 68571966 is 66917586.

It is a super-2 number, since 2×68571966² = 9404229042210312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18921 + ... + 22251.

It is an arithmetic number, because the mean of its divisors is an integer number (4438224).

Almost surely, 2^68571966 is an apocalyptic number.

68571966 is an abundant number, since it is smaller than the sum of its proper divisors (73451202).

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

68571966 is a wasteful number, since it uses less digits than its factorization.

68571966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3456.

The product of its digits is 544320, while the sum is 48.

The square root of 68571966 is about 8280.8191623776. The cubic root of 68571966 is about 409.3067125457.

The spelling of 68571966 in words is "sixty-eight million, five hundred seventy-one thousand, nine hundred sixty-six".