1818357212016 has 80 divisors (see below), whose sum is σ = 5221785561120. Its totient is φ = 605837237760.

The previous prime is 1818357211999. The next prime is 1818357212069. The reversal of 1818357212016 is 6102127538181.

1818357212016 is a `hidden beast` number, since 1 + 81 + 8 + 357 + 212 + 0 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47415 + ... + 1907606.

It is an arithmetic number, because the mean of its divisors is an integer number (65272319514).

Almost surely, 2^{1818357212016} is an apocalyptic number.

1818357212016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1818357212016 is an abundant number, since it is smaller than the sum of its proper divisors (3403428349104).

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

1818357212016 is a wasteful number, since it uses less digits than its factorization.

1818357212016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957191 (or 1957179 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 1818357212016 in words is "one trillion, eight hundred eighteen billion, three hundred fifty-seven million, two hundred twelve thousand, sixteen".