21966906614 has 16 divisors (see below), whose sum is σ = 33279416352. Its totient is φ = 10873826688.

The previous prime is 21966906613. The next prime is 21966906629. The reversal of 21966906614 is 41660966912.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21966906613) 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, 863582 + ... + 888654.

It is an arithmetic number, because the mean of its divisors is an integer number (2079963522).

Almost surely, 2^21966906614 is an apocalyptic number.

21966906614 is a deficient number, since it is larger than the sum of its proper divisors (11312509738).

21966906614 is a wasteful number, since it uses less digits than its factorization.

21966906614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29431.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 21966906614 in words is "twenty-one billion, nine hundred sixty-six million, nine hundred six thousand, six hundred fourteen".