105324432506621 has 16 divisors (see below), whose sum is σ = 111373870540800. Its totient is φ = 99325670536368.

The previous prime is 105324432506617. The next prime is 105324432506651. The reversal of 105324432506621 is 126605234423501.

It is a cyclic number.

It is not a de Polignac number, because 105324432506621 - 2² = 105324432506617 is a prime.

It is a super-2 number, since 2×105324432506621² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105324432506611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52481750 + ... + 54451656.

It is an arithmetic number, because the mean of its divisors is an integer number (6960866908800).

Almost surely, 2^{105324432506621} is an apocalyptic number.

It is an amenable number.

105324432506621 is a deficient number, since it is larger than the sum of its proper divisors (6049438034179).

105324432506621 is a wasteful number, since it uses less digits than its factorization.

105324432506621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982768.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 105324432506621 in words is "one hundred five trillion, three hundred twenty-four billion, four hundred thirty-two million, five hundred six thousand, six hundred twenty-one".