9525610935661 has 16 divisors (see below), whose sum is σ = 9956392992000. Its totient is φ = 9101736616000.

The previous prime is 9525610935637. The next prime is 9525610935691. The reversal of 9525610935661 is 1665390165259.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9525610935661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9525610935596 and 9525610935605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9525610935691) 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, 5373276 + ... + 6922666.

It is an arithmetic number, because the mean of its divisors is an integer number (622274562000).

Almost surely, 2^{9525610935661} is an apocalyptic number.

It is an amenable number.

9525610935661 is a deficient number, since it is larger than the sum of its proper divisors (430782056339).

9525610935661 is a wasteful number, since it uses less digits than its factorization.

9525610935661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551620.

The product of its (nonzero) digits is 13122000, while the sum is 58.

The spelling of 9525610935661 in words is "nine trillion, five hundred twenty-five billion, six hundred ten million, nine hundred thirty-five thousand, six hundred sixty-one".