27665001400016 has 20 divisors (see below), whose sum is σ = 56422042329600. Its totient is φ = 13104474347232.

The previous prime is 27665001399953. The next prime is 27665001400033. The reversal of 27665001400016 is 61000410056672.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45501646736 + ... + 45501647343.

It is an arithmetic number, because the mean of its divisors is an integer number (2821102116480).

Almost surely, 2^{27665001400016} is an apocalyptic number.

It is an amenable number.

27665001400016 is an abundant number, since it is smaller than the sum of its proper divisors (28757040929584).

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

27665001400016 is a wasteful number, since it uses less digits than its factorization.

27665001400016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91003294106 (or 91003294100 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 27665001400016 its reverse (61000410056672), we get a palindrome (88665411456688).

The spelling of 27665001400016 in words is "twenty-seven trillion, six hundred sixty-five billion, one million, four hundred thousand, sixteen".