10690220861 has 8 divisors (see below), whose sum is σ = 10846592064. Its totient is φ = 10534011040.

The previous prime is 10690220839. The next prime is 10690220869. The reversal of 10690220861 is 16802209601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10690220861 - 2²² = 10686026557 is a prime.

It is a super-2 number, since 2×10690220861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10690220869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96470 + ... + 175176.

It is an arithmetic number, because the mean of its divisors is an integer number (1355824008).

Almost surely, 2^10690220861 is an apocalyptic number.

It is an amenable number.

10690220861 is a deficient number, since it is larger than the sum of its proper divisors (156371203).

10690220861 is an equidigital number, since it uses as much as digits as its factorization.

10690220861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80691.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 10690220861 in words is "ten billion, six hundred ninety million, two hundred twenty thousand, eight hundred sixty-one".