61516546233 has 4 divisors (see below), whose sum is σ = 82022061648. Its totient is φ = 41011030820.

The previous prime is 61516546229. The next prime is 61516546237. The reversal of 61516546233 is 33264561516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (61516546229) and next prime (61516546237).

It is a cyclic number.

It is not a de Polignac number, because 61516546233 - 2² = 61516546229 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61516546237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10252757703 + ... + 10252757708.

It is an arithmetic number, because the mean of its divisors is an integer number (20505515412).

Almost surely, 2^61516546233 is an apocalyptic number.

It is an amenable number.

61516546233 is a deficient number, since it is larger than the sum of its proper divisors (20505515415).

61516546233 is a wasteful number, since it uses less digits than its factorization.

61516546233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20505515414.

The product of its digits is 388800, while the sum is 42.

The spelling of 61516546233 in words is "sixty-one billion, five hundred sixteen million, five hundred forty-six thousand, two hundred thirty-three".