1655016566011 has 4 divisors (see below), whose sum is σ = 1712086102800. Its totient is φ = 1597947029224.

The previous prime is 1655016566003. The next prime is 1655016566059. The reversal of 1655016566011 is 1106656105561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1655016566011 - 2³ = 1655016566003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655016566111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28534768351 + ... + 28534768408.

It is an arithmetic number, because the mean of its divisors is an integer number (428021525700).

Almost surely, 2^{1655016566011} is an apocalyptic number.

1655016566011 is a deficient number, since it is larger than the sum of its proper divisors (57069536789).

1655016566011 is an equidigital number, since it uses as much as digits as its factorization.

1655016566011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57069536788.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 1655016566011 in words is "one trillion, six hundred fifty-five billion, sixteen million, five hundred sixty-six thousand, eleven".