11721023662 has 16 divisors (see below), whose sum is σ = 17916940800. Its totient is φ = 5749125880.

The previous prime is 11721023659. The next prime is 11721023663. The reversal of 11721023662 is 26632012711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11721023663) 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, 47164 + ... + 160207.

It is an arithmetic number, because the mean of its divisors is an integer number (1119808800).

Almost surely, 2^11721023662 is an apocalyptic number.

11721023662 is a deficient number, since it is larger than the sum of its proper divisors (6195917138).

11721023662 is a wasteful number, since it uses less digits than its factorization.

11721023662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207911.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 11721023662 in words is "eleven billion, seven hundred twenty-one million, twenty-three thousand, six hundred sixty-two".