224781139966 has 32 divisors (see below), whose sum is σ = 392134037760. Its totient is φ = 95854974336.

The previous prime is 224781139963. The next prime is 224781139987. The reversal of 224781139966 is 669931187422.

It is a self number, because there is not a number n which added to its sum of digits gives 224781139966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224781139963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7549456 + ... + 7579171.

It is an arithmetic number, because the mean of its divisors is an integer number (12254188680).

Almost surely, 2^224781139966 is an apocalyptic number.

224781139966 is a deficient number, since it is larger than the sum of its proper divisors (167352897794).

224781139966 is a wasteful number, since it uses less digits than its factorization.

224781139966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15128688.

The product of its digits is 7838208, while the sum is 58.

The spelling of 224781139966 in words is "two hundred twenty-four billion, seven hundred eighty-one million, one hundred thirty-nine thousand, nine hundred sixty-six".