66110061226711 has 16 divisors (see below), whose sum is σ = 75073286440800. Its totient is φ = 57834235450368.

The previous prime is 66110061226637. The next prime is 66110061226733. The reversal of 66110061226711 is 11762216001166.

It is a cyclic number.

It is not a de Polignac number, because 66110061226711 - 2²¹ = 66110059129559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66110061226411) 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, 1930880166 + ... + 1930914403.

It is an arithmetic number, because the mean of its divisors is an integer number (4692080402550).

Almost surely, 2^{66110061226711} is an apocalyptic number.

66110061226711 is a deficient number, since it is larger than the sum of its proper divisors (8963225214089).

66110061226711 is a wasteful number, since it uses less digits than its factorization.

66110061226711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861794658.

The product of its (nonzero) digits is 36288, while the sum is 40.

Adding to 66110061226711 its reverse (11762216001166), we get a palindrome (77872277227877).

The spelling of 66110061226711 in words is "sixty-six trillion, one hundred ten billion, sixty-one million, two hundred twenty-six thousand, seven hundred eleven".