9540670663 has 4 divisors (see below), whose sum is σ = 9542986560. Its totient is φ = 9538354768.

The previous prime is 9540670651. The next prime is 9540670673. The reversal of 9540670663 is 3660760459.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9540670663 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 (9540670673) 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, 1151758 + ... + 1160011.

It is an arithmetic number, because the mean of its divisors is an integer number (2385746640).

Almost surely, 2^9540670663 is an apocalyptic number.

9540670663 is a deficient number, since it is larger than the sum of its proper divisors (2315897).

9540670663 is a wasteful number, since it uses less digits than its factorization.

9540670663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315896.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 9540670663 is about 97676.3567246445. The cubic root of 9540670663 is about 2120.9298358975.

The spelling of 9540670663 in words is "nine billion, five hundred forty million, six hundred seventy thousand, six hundred sixty-three".