18265543152 has 40 divisors (see below), whose sum is σ = 47204062080. Its totient is φ = 6086182080.

The previous prime is 18265543147. The next prime is 18265543157. The reversal of 18265543152 is 25134556281.

It is an interprime number because it is at equal distance from previous prime (18265543147) and next prime (18265543157).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18265543157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56077 + ... + 199187.

It is an arithmetic number, because the mean of its divisors is an integer number (1180101552).

Almost surely, 2^18265543152 is an apocalyptic number.

18265543152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18265543152 is an abundant number, since it is smaller than the sum of its proper divisors (28938518928).

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

18265543152 is a wasteful number, since it uses less digits than its factorization.

18265543152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145781 (or 145775 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The spelling of 18265543152 in words is "eighteen billion, two hundred sixty-five million, five hundred forty-three thousand, one hundred fifty-two".