10661842686 has 32 divisors (see below), whose sum is σ = 23556672000. Its totient is φ = 3189962880.

The previous prime is 10661842657. The next prime is 10661842687. The reversal of 10661842686 is 68624816601.

It is a super-2 number, since 2×10661842686² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661842687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017211 + ... + 1027638.

It is an arithmetic number, because the mean of its divisors is an integer number (736146000).

Almost surely, 2^10661842686 is an apocalyptic number.

10661842686 is an abundant number, since it is smaller than the sum of its proper divisors (12894829314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10661842686 is a wasteful number, since it uses less digits than its factorization.

10661842686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044944.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 10661842686 in words is "ten billion, six hundred sixty-one million, eight hundred forty-two thousand, six hundred eighty-six".