1000167666 has 16 divisors (see below), whose sum is σ = 2001360000. Its totient is φ = 333218448.

The previous prime is 1000167643. The next prime is 1000167667. The reversal of 1000167666 is 6667610001.

It is a super-2 number, since 2×1000167666² = 2000670720223775112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000167667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29701 + ... + 53688.

It is an arithmetic number, because the mean of its divisors is an integer number (125085000).

Almost surely, 2^1000167666 is an apocalyptic number.

1000167666 is an abundant number, since it is smaller than the sum of its proper divisors (1001192334).

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

1000167666 is a wasteful number, since it uses less digits than its factorization.

1000167666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85393.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1000167666 is about 31625.4275228020. The cubic root of 1000167666 is about 1000.0558855434.

Adding to 1000167666 its reverse (6667610001), we get a palindrome (7667777667).

The spelling of 1000167666 in words is "one billion, one hundred sixty-seven thousand, six hundred sixty-six".