223851515140 has 24 divisors (see below), whose sum is σ = 512823471552. Its totient is φ = 81400550880.

The previous prime is 223851515123. The next prime is 223851515161. The reversal of 223851515140 is 41515158322.

It is a self number, because there is not a number n which added to its sum of digits gives 223851515140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508753224 + ... + 508753663.

It is an arithmetic number, because the mean of its divisors is an integer number (21367644648).

Almost surely, 2^223851515140 is an apocalyptic number.

223851515140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223851515140 is an abundant number, since it is smaller than the sum of its proper divisors (288971956412).

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

223851515140 is a wasteful number, since it uses less digits than its factorization.

223851515140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017506907 (or 1017506905 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 223851515140 in words is "two hundred twenty-three billion, eight hundred fifty-one million, five hundred fifteen thousand, one hundred forty".