611220245197 has 2 divisors, whose sum is σ = 611220245198. Its totient is φ = 611220245196.

The previous prime is 611220245117. The next prime is 611220245231. The reversal of 611220245197 is 791542022116.

611220245197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548052973636 + 63167271561 = 740306^2 + 251331^2 .

It is a cyclic number.

It is not a de Polignac number, because 611220245197 - 2¹⁵ = 611220212429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611220245117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305610122598 + 305610122599.

It is an arithmetic number, because the mean of its divisors is an integer number (305610122599).

Almost surely, 2^611220245197 is an apocalyptic number.

It is an amenable number.

611220245197 is a deficient number, since it is larger than the sum of its proper divisors (1).

611220245197 is an equidigital number, since it uses as much as digits as its factorization.

611220245197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 611220245197 in words is "six hundred eleven billion, two hundred twenty million, two hundred forty-five thousand, one hundred ninety-seven".