16711561016655 has 16 divisors (see below), whose sum is σ = 26738566583424. Its totient is φ = 8912809556640.

The previous prime is 16711561016651. The next prime is 16711561016663. The reversal of 16711561016655 is 55661016511761.

It is not a de Polignac number, because 16711561016655 - 2² = 16711561016651 is a prime.

It is a super-2 number, since 2×16711561016655² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16711561016598 and 16711561016607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16711561016651) 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, 5725440 + ... + 8136570.

It is an arithmetic number, because the mean of its divisors is an integer number (1671160411464).

Almost surely, 2^{16711561016655} is an apocalyptic number.

16711561016655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16711561016655 is a deficient number, since it is larger than the sum of its proper divisors (10027005566769).

16711561016655 is a wasteful number, since it uses less digits than its factorization.

16711561016655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873206.

The product of its (nonzero) digits is 1134000, while the sum is 51.

The spelling of 16711561016655 in words is "sixteen trillion, seven hundred eleven billion, five hundred sixty-one million, sixteen thousand, six hundred fifty-five".