1220550791167 has 2 divisors, whose sum is σ = 1220550791168. Its totient is φ = 1220550791166.

The previous prime is 1220550791107. The next prime is 1220550791189. The reversal of 1220550791167 is 7611970550221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220550791167 - 2¹⁹ = 1220550266879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220550791107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610275395583 + 610275395584.

It is an arithmetic number, because the mean of its divisors is an integer number (610275395584).

Almost surely, 2^{1220550791167} is an apocalyptic number.

1220550791167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220550791167 is an equidigital number, since it uses as much as digits as its factorization.

1220550791167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 46.

The spelling of 1220550791167 in words is "one trillion, two hundred twenty billion, five hundred fifty million, seven hundred ninety-one thousand, one hundred sixty-seven".