99560828621 has 2 divisors, whose sum is σ = 99560828622. Its totient is φ = 99560828620.

The previous prime is 99560828611. The next prime is 99560828651. The reversal of 99560828621 is 12682806599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93673335721 + 5887492900 = 306061^2 + 76730^2 .

It is a cyclic number.

It is not a de Polignac number, because 99560828621 - 2⁶ = 99560828557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99560828611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49780414310 + 49780414311.

It is an arithmetic number, because the mean of its divisors is an integer number (49780414311).

Almost surely, 2^99560828621 is an apocalyptic number.

It is an amenable number.

99560828621 is a deficient number, since it is larger than the sum of its proper divisors (1).

99560828621 is an equidigital number, since it uses as much as digits as its factorization.

99560828621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 99560828621 in words is "ninety-nine billion, five hundred sixty million, eight hundred twenty-eight thousand, six hundred twenty-one".