1611411466665 has 128 divisors (see below), whose sum is σ = 3462620700672. Its totient is φ = 618002565120.

The previous prime is 1611411466631. The next prime is 1611411466673. The reversal of 1611411466665 is 5666641141161.

It is not a de Polignac number, because 1611411466665 - 2⁶ = 1611411466601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 68802037 + ... + 68825453.

It is an arithmetic number, because the mean of its divisors is an integer number (27051724224).

Almost surely, 2^{1611411466665} is an apocalyptic number.

1611411466665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1611411466665 is an abundant number, since it is smaller than the sum of its proper divisors (1851209234007).

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

1611411466665 is a wasteful number, since it uses less digits than its factorization.

1611411466665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28039.

The product of its digits is 622080, while the sum is 48.

The spelling of 1611411466665 in words is "one trillion, six hundred eleven billion, four hundred eleven million, four hundred sixty-six thousand, six hundred sixty-five".