61632566445 has 32 divisors (see below), whose sum is σ = 104524656768. Its totient is φ = 30903994368.

The previous prime is 61632566431. The next prime is 61632566449. The reversal of 61632566445 is 54466523616.

It is not a de Polignac number, because 61632566445 - 2¹⁸ = 61632304301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61632566394 and 61632566403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61632566449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109962 + ... + 367908.

It is an arithmetic number, because the mean of its divisors is an integer number (3266395524).

Almost surely, 2^61632566445 is an apocalyptic number.

It is an amenable number.

61632566445 is a deficient number, since it is larger than the sum of its proper divisors (42892090323).

61632566445 is a wasteful number, since it uses less digits than its factorization.

61632566445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258909.

The product of its digits is 3110400, while the sum is 48.

The spelling of 61632566445 in words is "sixty-one billion, six hundred thirty-two million, five hundred sixty-six thousand, four hundred forty-five".