18158300420 has 24 divisors (see below), whose sum is σ = 41065695384. Its totient is φ = 6704603136.

The previous prime is 18158300417. The next prime is 18158300441. The reversal of 18158300420 is 2400385181.

It can be written as a sum of positive squares in 4 ways, for example, as 2643605056 + 15514695364 = 51416^2 + 124558^2 .

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, 34919549 + ... + 34920068.

It is an arithmetic number, because the mean of its divisors is an integer number (1711070641).

Almost surely, 2^18158300420 is an apocalyptic number.

18158300420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18158300420 is an abundant number, since it is smaller than the sum of its proper divisors (22907394964).

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

18158300420 is a wasteful number, since it uses less digits than its factorization.

18158300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69839639 (or 69839637 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 18158300420 in words is "eighteen billion, one hundred fifty-eight million, three hundred thousand, four hundred twenty".