220303636872761 has 16 divisors (see below), whose sum is σ = 247020865100688. Its totient is φ = 195144857164800.

The previous prime is 220303636872691. The next prime is 220303636872763. The reversal of 220303636872761 is 167278636303022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 95819744027536 + 124483892845225 = 9788756^2 + 11157235^2 .

It is a cyclic number.

It is not a de Polignac number, because 220303636872761 - 2²² = 220303632678457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220303636872697 and 220303636872706.

It is not an unprimeable number, because it can be changed into a prime (220303636872763) 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, 3387899036 + ... + 3387964061.

It is an arithmetic number, because the mean of its divisors is an integer number (15438804068793).

Almost surely, 2^{220303636872761} is an apocalyptic number.

It is an amenable number.

220303636872761 is a deficient number, since it is larger than the sum of its proper divisors (26717228227927).

220303636872761 is a wasteful number, since it uses less digits than its factorization.

220303636872761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6775863212.

The product of its (nonzero) digits is 18289152, while the sum is 56.

The spelling of 220303636872761 in words is "two hundred twenty trillion, three hundred three billion, six hundred thirty-six million, eight hundred seventy-two thousand, seven hundred sixty-one".