9723615590661 has 16 divisors (see below), whose sum is σ = 14816993280000. Its totient is φ = 5556331052208.

The previous prime is 9723615590639. The next prime is 9723615590783. The reversal of 9723615590661 is 1660955163279.

It is not a de Polignac number, because 9723615590661 - 2⁶ = 9723615590597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9723615590595 and 9723615590604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9723615591661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6278340 + ... + 7672338.

It is an arithmetic number, because the mean of its divisors is an integer number (926062080000).

Almost surely, 2^{9723615590661} is an apocalyptic number.

It is an amenable number.

9723615590661 is a deficient number, since it is larger than the sum of its proper divisors (5093377689339).

9723615590661 is a wasteful number, since it uses less digits than its factorization.

9723615590661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726168.

The product of its (nonzero) digits is 18370800, while the sum is 60.

The spelling of 9723615590661 in words is "nine trillion, seven hundred twenty-three billion, six hundred fifteen million, five hundred ninety thousand, six hundred sixty-one".