21966673262 has 16 divisors (see below), whose sum is σ = 35102108160. Its totient is φ = 10279900152.

The previous prime is 21966673231. The next prime is 21966673271. The reversal of 21966673262 is 26237666912.

It is a self number, because there is not a number n which added to its sum of digits gives 21966673262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479198 + ... + 3485505.

It is an arithmetic number, because the mean of its divisors is an integer number (2193881760).

Almost surely, 2^21966673262 is an apocalyptic number.

21966673262 is a deficient number, since it is larger than the sum of its proper divisors (13135434898).

21966673262 is a wasteful number, since it uses less digits than its factorization.

21966673262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964807.

The product of its digits is 1959552, while the sum is 50.

The spelling of 21966673262 in words is "twenty-one billion, nine hundred sixty-six million, six hundred seventy-three thousand, two hundred sixty-two".