8208529409661 has 16 divisors (see below), whose sum is σ = 12508286373888. Its totient is φ = 4690569078000.

The previous prime is 8208529409651. The next prime is 8208529409699. The reversal of 8208529409661 is 1669049258028.

It is not a de Polignac number, because 8208529409661 - 2¹⁹ = 8208528885373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8208529409595 and 8208529409604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8208529409611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5694636 + ... + 6988986.

It is an arithmetic number, because the mean of its divisors is an integer number (781767898368).

Almost surely, 2^{8208529409661} is an apocalyptic number.

It is an amenable number.

8208529409661 is a deficient number, since it is larger than the sum of its proper divisors (4299756964227).

8208529409661 is a wasteful number, since it uses less digits than its factorization.

8208529409661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596352.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 8208529409661 in words is "eight trillion, two hundred eight billion, five hundred twenty-nine million, four hundred nine thousand, six hundred sixty-one".