11066662623 has 16 divisors (see below), whose sum is σ = 15165370880. Its totient is φ = 7175653056.

The previous prime is 11066662609. The next prime is 11066662631. The reversal of 11066662623 is 32626666011.

It is a de Polignac number, because none of the positive numbers 2^k-11066662623 is a prime.

It is a super-2 number, since 2×11066662623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066662643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332590 + ... + 364347.

It is an arithmetic number, because the mean of its divisors is an integer number (947835680).

Almost surely, 2^11066662623 is an apocalyptic number.

11066662623 is a deficient number, since it is larger than the sum of its proper divisors (4098708257).

11066662623 is an equidigital number, since it uses as much as digits as its factorization.

11066662623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697086.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 11066662623 in words is "eleven billion, sixty-six million, six hundred sixty-two thousand, six hundred twenty-three".