9661482551653 has 4 divisors (see below), whose sum is σ = 9661497299008. Its totient is φ = 9661467804300.

The previous prime is 9661482551639. The next prime is 9661482551689. The reversal of 9661482551653 is 3561552841669.

9661482551653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9661482551653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9661482551591 and 9661482551600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661482551053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6342951 + ... + 7717252.

It is an arithmetic number, because the mean of its divisors is an integer number (2415374324752).

Almost surely, 2^{9661482551653} is an apocalyptic number.

It is an amenable number.

9661482551653 is a deficient number, since it is larger than the sum of its proper divisors (14747355).

9661482551653 is a wasteful number, since it uses less digits than its factorization.

9661482551653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14747354.

The product of its digits is 46656000, while the sum is 61.

The spelling of 9661482551653 in words is "nine trillion, six hundred sixty-one billion, four hundred eighty-two million, five hundred fifty-one thousand, six hundred fifty-three".