10561138843392 has 144 divisors (see below), whose sum is σ = 33068272114080. Its totient is φ = 3313298423808.

The previous prime is 10561138843351. The next prime is 10561138843403. The reversal of 10561138843392 is 29334883116501.

It is a happy number.

10561138843392 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 113 + 8 + 8 + 433 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×10561138843392² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44821983 + ... + 45056990.

It is an arithmetic number, because the mean of its divisors is an integer number (229640778570).

Almost surely, 2^{10561138843392} is an apocalyptic number.

10561138843392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10561138843392 is an abundant number, since it is smaller than the sum of its proper divisors (22507133270688).

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

10561138843392 is an equidigital number, since it uses as much as digits as its factorization.

10561138843392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89879015 (or 89878995 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 10561138843392 in words is "ten trillion, five hundred sixty-one billion, one hundred thirty-eight million, eight hundred forty-three thousand, three hundred ninety-two".