10661445879 has 16 divisors (see below), whose sum is σ = 16770078720. Its totient is φ = 5895730080.

The previous prime is 10661445853. The next prime is 10661445917. The reversal of 10661445879 is 97854416601.

It is not a de Polignac number, because 10661445879 - 2¹¹ = 10661443831 is a prime.

It is a super-2 number, since 2×10661445879² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661495879) 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, 8187864 + ... + 8189165.

It is an arithmetic number, because the mean of its divisors is an integer number (1048129920).

Almost surely, 2^10661445879 is an apocalyptic number.

10661445879 is a deficient number, since it is larger than the sum of its proper divisors (6108632841).

10661445879 is a wasteful number, since it uses less digits than its factorization.

10661445879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377070.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 10661445879 in words is "ten billion, six hundred sixty-one million, four hundred forty-five thousand, eight hundred seventy-nine".