61006155323 has 2 divisors, whose sum is σ = 61006155324. Its totient is φ = 61006155322.

The previous prime is 61006155319. The next prime is 61006155337. The reversal of 61006155323 is 32355160016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61006155323 - 2² = 61006155319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61006155323.

It is not a weakly prime, because it can be changed into another prime (61006155313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30503077661 + 30503077662.

It is an arithmetic number, because the mean of its divisors is an integer number (30503077662).

Almost surely, 2^61006155323 is an apocalyptic number.

61006155323 is a deficient number, since it is larger than the sum of its proper divisors (1).

61006155323 is an equidigital number, since it uses as much as digits as its factorization.

61006155323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 61006155323 in words is "sixty-one billion, six million, one hundred fifty-five thousand, three hundred twenty-three".