10631266946 has 4 divisors (see below), whose sum is σ = 15946900422. Its totient is φ = 5315633472.

The previous prime is 10631266939. The next prime is 10631266949. The reversal of 10631266946 is 64966213601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64966213601 = 6323 ⋅10274587.

It can be written as a sum of positive squares in only one way, i.e., 8847471721 + 1783795225 = 94061^2 + 42235^2 .

It is a super-2 number, since 2×10631266946² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10631266897 and 10631266906.

It is not an unprimeable number, because it can be changed into a prime (10631266949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657816735 + ... + 2657816738.

Almost surely, 2^10631266946 is an apocalyptic number.

10631266946 is a deficient number, since it is larger than the sum of its proper divisors (5315633476).

10631266946 is an equidigital number, since it uses as much as digits as its factorization.

10631266946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315633475.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 10631266946 in words is "ten billion, six hundred thirty-one million, two hundred sixty-six thousand, nine hundred forty-six".