10409956663 has 4 divisors (see below), whose sum is σ = 10437865768. Its totient is φ = 10382047560.

The previous prime is 10409956657. The next prime is 10409956691. The reversal of 10409956663 is 36665990401.

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-10409956663 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 (10409956603) 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, 13953993 + ... + 13954738.

It is an arithmetic number, because the mean of its divisors is an integer number (2609466442).

Almost surely, 2^10409956663 is an apocalyptic number.

10409956663 is a deficient number, since it is larger than the sum of its proper divisors (27909105).

10409956663 is an equidigital number, since it uses as much as digits as its factorization.

10409956663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27909104.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 10409956663 in words is "ten billion, four hundred nine million, nine hundred fifty-six thousand, six hundred sixty-three".