61632223165765 has 16 divisors (see below), whose sum is σ = 84524319724032. Its totient is φ = 42262031908224.

The previous prime is 61632223165637. The next prime is 61632223165781. The reversal of 61632223165765 is 56756132223616.

It is a cyclic number.

It is not a de Polignac number, because 61632223165765 - 2⁷ = 61632223165637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41553172 + ... + 43010818.

It is an arithmetic number, because the mean of its divisors is an integer number (5282769982752).

Almost surely, 2^{61632223165765} is an apocalyptic number.

It is an amenable number.

61632223165765 is a deficient number, since it is larger than the sum of its proper divisors (22892096558267).

61632223165765 is a wasteful number, since it uses less digits than its factorization.

61632223165765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665716.

The product of its digits is 16329600, while the sum is 55.

The spelling of 61632223165765 in words is "sixty-one trillion, six hundred thirty-two billion, two hundred twenty-three million, one hundred sixty-five thousand, seven hundred sixty-five".