61111697223 has 64 divisors (see below), whose sum is σ = 94684930560. Its totient is φ = 34810933248.

The previous prime is 61111697197. The next prime is 61111697249. The reversal of 61111697223 is 32279611116.

It is an interprime number because it is at equal distance from previous prime (61111697197) and next prime (61111697249).

It is not a de Polignac number, because 61111697223 - 2⁸ = 61111696967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61111697293) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2194515 + ... + 2222187.

It is an arithmetic number, because the mean of its divisors is an integer number (1479452040).

Almost surely, 2^61111697223 is an apocalyptic number.

61111697223 is a deficient number, since it is larger than the sum of its proper divisors (33573233337).

61111697223 is a wasteful number, since it uses less digits than its factorization.

61111697223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27808.

The product of its digits is 27216, while the sum is 39.

The spelling of 61111697223 in words is "sixty-one billion, one hundred eleven million, six hundred ninety-seven thousand, two hundred twenty-three".