61220335199 has 2 divisors, whose sum is σ = 61220335200. Its totient is φ = 61220335198.

The previous prime is 61220335153. The next prime is 61220335229. The reversal of 61220335199 is 99153302216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61220335199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61220335999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30610167599 + 30610167600.

It is an arithmetic number, because the mean of its divisors is an integer number (30610167600).

Almost surely, 2^61220335199 is an apocalyptic number.

61220335199 is a deficient number, since it is larger than the sum of its proper divisors (1).

61220335199 is an equidigital number, since it uses as much as digits as its factorization.

61220335199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 61220335199 in words is "sixty-one billion, two hundred twenty million, three hundred thirty-five thousand, one hundred ninety-nine".