18369652080 has 160 divisors (see below), whose sum is σ = 61682677056. Its totient is φ = 4495491072.

The previous prime is 18369652061. The next prime is 18369652087. The reversal of 18369652080 is 8025696381.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18369652087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522744 + ... + 556776.

Almost surely, 2^18369652080 is an apocalyptic number.

18369652080 is a gapful number since it is divisible by the number (10) 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 18369652080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30841338528).

18369652080 is an abundant number, since it is smaller than the sum of its proper divisors (43313024976).

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

18369652080 is a wasteful number, since it uses less digits than its factorization.

18369652080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34235 (or 34229 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 18369652080 in words is "eighteen billion, three hundred sixty-nine million, six hundred fifty-two thousand, eighty".