27610561361663 has 16 divisors (see below), whose sum is σ = 31578660158976. Its totient is φ = 23648399285280.

The previous prime is 27610561361659. The next prime is 27610561361671. The reversal of 27610561361663 is 36616316501672.

It is not a de Polignac number, because 27610561361663 - 2² = 27610561361659 is a prime.

It is a super-2 number, since 2×27610561361663² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27610561361363) 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, 98095670 + ... + 98376732.

It is an arithmetic number, because the mean of its divisors is an integer number (1973666259936).

Almost surely, 2^{27610561361663} is an apocalyptic number.

27610561361663 is a deficient number, since it is larger than the sum of its proper divisors (3968098797313).

27610561361663 is a wasteful number, since it uses less digits than its factorization.

27610561361663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291574.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 27610561361663 in words is "twenty-seven trillion, six hundred ten billion, five hundred sixty-one million, three hundred sixty-one thousand, six hundred sixty-three".