18766452022272 has 264 divisors, whose sum is σ = 54736602320400. Its totient is φ = 6192230105088.

The previous prime is 18766452022267. The next prime is 18766452022273. The reversal of 18766452022272 is 27222025466781.

18766452022272 is a `hidden beast` number, since 1 + 8 + 76 + 6 + 4 + 520 + 22 + 27 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18766452022273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1134121903 + ... + 1134138449.

It is an arithmetic number, because the mean of its divisors is an integer number (207335614850).

Almost surely, 2^{18766452022272} is an apocalyptic number.

18766452022272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18766452022272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27368301160200).

18766452022272 is an abundant number, since it is smaller than the sum of its proper divisors (35970150298128).

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

18766452022272 is a wasteful number, since it uses less digits than its factorization.

18766452022272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17811 (or 17790 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 18766452022272 in words is "eighteen trillion, seven hundred sixty-six billion, four hundred fifty-two million, twenty-two thousand, two hundred seventy-two".