18109380662 has 32 divisors (see below), whose sum is σ = 30587971680. Its totient is φ = 7990272000.

The previous prime is 18109380661. The next prime is 18109380683. The reversal of 18109380662 is 26608390181.

It is a super-2 number, since 2×18109380662² (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 (18109380661) 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, 81839 + ... + 207162.

It is an arithmetic number, because the mean of its divisors is an integer number (955874115).

Almost surely, 2^18109380662 is an apocalyptic number.

18109380662 is a deficient number, since it is larger than the sum of its proper divisors (12478591018).

18109380662 is a wasteful number, since it uses less digits than its factorization.

18109380662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289136.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 18109380662 in words is "eighteen billion, one hundred nine million, three hundred eighty thousand, six hundred sixty-two".