10631434661 has 4 divisors (see below), whose sum is σ = 10631817612. Its totient is φ = 10631051712.

The previous prime is 10631434637. The next prime is 10631434663. The reversal of 10631434661 is 16643413601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4614484900 + 6016949761 = 67930^2 + 77569^2 .

It is a cyclic number.

It is not a de Polignac number, because 10631434661 - 2¹⁴ = 10631418277 is a prime.

It is a super-2 number, since 2×10631434661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10631434663) 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 3 ways as a sum of consecutive naturals, for example, 146276 + ... + 206541.

It is an arithmetic number, because the mean of its divisors is an integer number (2657954403).

Almost surely, 2^10631434661 is an apocalyptic number.

It is an amenable number.

10631434661 is a deficient number, since it is larger than the sum of its proper divisors (382951).

10631434661 is an equidigital number, since it uses as much as digits as its factorization.

10631434661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382950.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 10631434661 in words is "ten billion, six hundred thirty-one million, four hundred thirty-four thousand, six hundred sixty-one".