10553442515561 has 8 divisors (see below), whose sum is σ = 11513115079200. Its totient is φ = 9593814735040.

The previous prime is 10553442515543. The next prime is 10553442515563. The reversal of 10553442515561 is 16551524435501.

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 10553442515561 - 2²⁶ = 10553375406697 is a prime.

It is a super-3 number, since 3×10553442515561³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10553442515563) 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, 10702091 + ... + 11646528.

It is an arithmetic number, because the mean of its divisors is an integer number (1439139384900).

Almost surely, 2^{10553442515561} is an apocalyptic number.

10553442515561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10553442515561 is a deficient number, since it is larger than the sum of its proper divisors (959672563639).

10553442515561 is a wasteful number, since it uses less digits than its factorization.

10553442515561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391559.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 10553442515561 in words is "ten trillion, five hundred fifty-three billion, four hundred forty-two million, five hundred fifteen thousand, five hundred sixty-one".