11142665231655 has 32 divisors (see below), whose sum is σ = 18171330877440. Its totient is φ = 5828481809280.

The previous prime is 11142665231651. The next prime is 11142665231671. The reversal of 11142665231655 is 55613256624111.

It is not a de Polignac number, because 11142665231655 - 2² = 11142665231651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142665231651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415801 + ... + 4739010.

It is an arithmetic number, because the mean of its divisors is an integer number (567854089920).

Almost surely, 2^{11142665231655} is an apocalyptic number.

11142665231655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11142665231655 is a deficient number, since it is larger than the sum of its proper divisors (7028665645785).

11142665231655 is a wasteful number, since it uses less digits than its factorization.

11142665231655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157591.

The product of its digits is 1296000, while the sum is 48.

The spelling of 11142665231655 in words is "eleven trillion, one hundred forty-two billion, six hundred sixty-five million, two hundred thirty-one thousand, six hundred fifty-five".