110660601061561 has 8 divisors (see below), whose sum is σ = 111891059166600. Its totient is φ = 109432786262400.

The previous prime is 110660601061553. The next prime is 110660601061669. The reversal of 110660601061561 is 165160106066011.

It can be written as a sum of positive squares in 4 ways, for example, as 87539226937600 + 23121374123961 = 9356240^2 + 4808469^2 .

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 110660601061561 - 2³ = 110660601061553 is a prime.

It is a super-2 number, since 2×110660601061561² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110660601061501) 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, 660742276 + ... + 660909733.

It is an arithmetic number, because the mean of its divisors is an integer number (13986382395825).

Almost surely, 2^{110660601061561} is an apocalyptic number.

It is an amenable number.

110660601061561 is a deficient number, since it is larger than the sum of its proper divisors (1230458105039).

110660601061561 is a wasteful number, since it uses less digits than its factorization.

110660601061561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321652939.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 110660601061561 in words is "one hundred ten trillion, six hundred sixty billion, six hundred one million, sixty-one thousand, five hundred sixty-one".