20246166181476 has 81 divisors (see below), whose sum is σ = 51893529925419. Its totient is φ = 6655625874432.

The previous prime is 20246166181471. The next prime is 20246166181477. The reversal of 20246166181476 is 67418166164202.

The square root of 20246166181476 is 4499574.

It is a perfect power (a square), and thus also a powerful number.

20246166181476 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 6 + 1 + 6 + 618 + 14 + 7 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1000748139876 + 19245418041600 = 1000374^2 + 4386960^2 .

It is not an unprimeable number, because it can be changed into a prime (20246166181471) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1970808276 + ... + 1970818548.

Almost surely, 2^{20246166181476} is an apocalyptic number.

20246166181476 is the 4499574-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20246166181476

20246166181476 is an abundant number, since it is smaller than the sum of its proper divisors (31647363743943).

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

20246166181476 is an frugal number, since it uses more digits than its factorization.

20246166181476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20702 (or 10351 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 20246166181476 in words is "twenty trillion, two hundred forty-six billion, one hundred sixty-six million, one hundred eighty-one thousand, four hundred seventy-six".