22151056666 has 16 divisors (see below), whose sum is σ = 33938787456. Its totient is φ = 10838200576.

The previous prime is 22151056657. The next prime is 22151056667. The reversal of 22151056666 is 66665015122.

It is a super-2 number, since 2×22151056666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22151056667) 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, 774330 + ... + 802426.

It is an arithmetic number, because the mean of its divisors is an integer number (2121174216).

Almost surely, 2^22151056666 is an apocalyptic number.

22151056666 is a deficient number, since it is larger than the sum of its proper divisors (11787730790).

22151056666 is a wasteful number, since it uses less digits than its factorization.

22151056666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36533.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 22151056666 in words is "twenty-two billion, one hundred fifty-one million, fifty-six thousand, six hundred sixty-six".