4666221142772 has 12 divisors (see below), whose sum is σ = 9332442285600. Its totient is φ = 1999809061176.

The previous prime is 4666221142771. The next prime is 4666221142787. The reversal of 4666221142772 is 2772411226664.

4666221142772 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4666221142772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4666221142771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83325377522 + ... + 83325377577.

It is an arithmetic number, because the mean of its divisors is an integer number (777703523800).

Almost surely, 2^{4666221142772} is an apocalyptic number.

It is an amenable number.

4666221142772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4666221142772 is a wasteful number, since it uses less digits than its factorization.

4666221142772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166650755110 (or 166650755108 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 50.

The spelling of 4666221142772 in words is "four trillion, six hundred sixty-six billion, two hundred twenty-one million, one hundred forty-two thousand, seven hundred seventy-two".