10666950251 has 4 divisors (see below), whose sum is σ = 10708456152. Its totient is φ = 10625444352.

The previous prime is 10666950221. The next prime is 10666950277. The reversal of 10666950251 is 15205966601.

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-10666950251 is a prime.

It is a super-2 number, since 2×10666950251² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10666950199 and 10666950208.

It is not an unprimeable number, because it can be changed into a prime (10666950221) 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, 20752565 + ... + 20753078.

It is an arithmetic number, because the mean of its divisors is an integer number (2677114038).

Almost surely, 2^10666950251 is an apocalyptic number.

10666950251 is a deficient number, since it is larger than the sum of its proper divisors (41505901).

10666950251 is an equidigital number, since it uses as much as digits as its factorization.

10666950251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41505900.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 10666950251 in words is "ten billion, six hundred sixty-six million, nine hundred fifty thousand, two hundred fifty-one".