356222198077 has 2 divisors, whose sum is σ = 356222198078. Its totient is φ = 356222198076.

The previous prime is 356222198063. The next prime is 356222198081. The reversal of 356222198077 is 770891222653.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331512244441 + 24709953636 = 575771^2 + 157194^2 .

It is a cyclic number.

It is not a de Polignac number, because 356222198077 - 2⁷ = 356222197949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356222598077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178111099038 + 178111099039.

It is an arithmetic number, because the mean of its divisors is an integer number (178111099039).

Almost surely, 2^356222198077 is an apocalyptic number.

It is an amenable number.

356222198077 is a deficient number, since it is larger than the sum of its proper divisors (1).

356222198077 is an equidigital number, since it uses as much as digits as its factorization.

356222198077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 356222198077 in words is "three hundred fifty-six billion, two hundred twenty-two million, one hundred ninety-eight thousand, seventy-seven".