18497001696 has 144 divisors (see below), whose sum is σ = 50346524592. Its totient is φ = 5944074240.

The previous prime is 18497001673. The next prime is 18497001727. The reversal of 18497001696 is 69610079481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18931960 + ... + 18932936.

It is an arithmetic number, because the mean of its divisors is an integer number (349628643).

Almost surely, 2^18497001696 is an apocalyptic number.

18497001696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18497001696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25173262296).

18497001696 is an abundant number, since it is smaller than the sum of its proper divisors (31849522896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18497001696 is an equidigital number, since it uses as much as digits as its factorization.

18497001696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 18497001696 in words is "eighteen billion, four hundred ninety-seven million, one thousand, six hundred ninety-six".