9495909661 has 16 divisors (see below), whose sum is σ = 11481088000. Its totient is φ = 7672194288.

The previous prime is 9495909653. The next prime is 9495909679. The reversal of 9495909661 is 1669095949.

It is a cyclic number.

It is not a de Polignac number, because 9495909661 - 2³ = 9495909653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9495909596 and 9495909605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9495909061) 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, 152925 + ... + 205858.

It is an arithmetic number, because the mean of its divisors is an integer number (717568000).

Almost surely, 2^9495909661 is an apocalyptic number.

It is an amenable number.

9495909661 is a deficient number, since it is larger than the sum of its proper divisors (1985178339).

9495909661 is a wasteful number, since it uses less digits than its factorization.

9495909661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359008.

The product of its (nonzero) digits is 4723920, while the sum is 58.

The square root of 9495909661 is about 97446.9581926496. The cubic root of 9495909661 is about 2117.6077843795.

The spelling of 9495909661 in words is "nine billion, four hundred ninety-five million, nine hundred nine thousand, six hundred sixty-one".