2206199267557 has 2 divisors, whose sum is σ = 2206199267558. Its totient is φ = 2206199267556.

The previous prime is 2206199267549. The next prime is 2206199267599. The reversal of 2206199267557 is 7557629916022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2200923569601 + 5275697956 = 1483551^2 + 72634^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206199267557 - 2³ = 2206199267549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2206199267495 and 2206199267504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2206199264557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103099633778 + 1103099633779.

It is an arithmetic number, because the mean of its divisors is an integer number (1103099633779).

Almost surely, 2^{2206199267557} is an apocalyptic number.

It is an amenable number.

2206199267557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206199267557 is an equidigital number, since it uses as much as digits as its factorization.

2206199267557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 2206199267557 in words is "two trillion, two hundred six billion, one hundred ninety-nine million, two hundred sixty-seven thousand, five hundred fifty-seven".