9490515661 has 8 divisors (see below), whose sum is σ = 10362572064. Its totient is φ = 8620006320.

The previous prime is 9490515613. The next prime is 9490515689. The reversal of 9490515661 is 1665150949.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9490515661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9490515061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373915 + ... + 398488.

It is an arithmetic number, because the mean of its divisors is an integer number (1295321508).

Almost surely, 2^9490515661 is an apocalyptic number.

It is an amenable number.

9490515661 is a deficient number, since it is larger than the sum of its proper divisors (872056403).

9490515661 is a wasteful number, since it uses less digits than its factorization.

9490515661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773531.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 9490515661 is about 97419.2776661786. The cubic root of 9490515661 is about 2117.2067506627.

The spelling of 9490515661 in words is "nine billion, four hundred ninety million, five hundred fifteen thousand, six hundred sixty-one".