220672102443509 has 2 divisors, whose sum is σ = 220672102443510. Its totient is φ = 220672102443508.

The previous prime is 220672102443431. The next prime is 220672102443547. The reversal of 220672102443509 is 905344201276022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180511719766225 + 40160382677284 = 13435465^2 + 6337222^2 .

It is a cyclic number.

It is not a de Polignac number, because 220672102443509 - 2¹² = 220672102439413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220672102443209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110336051221754 + 110336051221755.

It is an arithmetic number, because the mean of its divisors is an integer number (110336051221755).

Almost surely, 2^{220672102443509} is an apocalyptic number.

It is an amenable number.

220672102443509 is a deficient number, since it is larger than the sum of its proper divisors (1).

220672102443509 is an equidigital number, since it uses as much as digits as its factorization.

220672102443509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 220672102443509 in words is "two hundred twenty trillion, six hundred seventy-two billion, one hundred two million, four hundred forty-three thousand, five hundred nine".