18361352560 has 20 divisors (see below), whose sum is σ = 42690144888. Its totient is φ = 7344540992.

The previous prime is 18361352543. The next prime is 18361352567. The reversal of 18361352560 is 6525316381.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18361352567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114758374 + ... + 114758533.

Almost surely, 2^18361352560 is an apocalyptic number.

18361352560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18361352560 is an abundant number, since it is smaller than the sum of its proper divisors (24328792328).

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

18361352560 is a wasteful number, since it uses less digits than its factorization.

18361352560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229516920 (or 229516914 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 18361352560 in words is "eighteen billion, three hundred sixty-one million, three hundred fifty-two thousand, five hundred sixty".