1131666313155 has 16 divisors (see below), whose sum is σ = 2069332687104. Its totient is φ = 517333171680.

The previous prime is 1131666313133. The next prime is 1131666313177. The reversal of 1131666313155 is 5513136661311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1131666313133) and next prime (1131666313177).

It is not a de Polignac number, because 1131666313155 - 2⁶ = 1131666313091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5388887101 + ... + 5388887310.

It is an arithmetic number, because the mean of its divisors is an integer number (129333292944).

Almost surely, 2^{1131666313155} is an apocalyptic number.

1131666313155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131666313155 is a deficient number, since it is larger than the sum of its proper divisors (937666373949).

1131666313155 is a wasteful number, since it uses less digits than its factorization.

1131666313155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777774426.

The product of its digits is 145800, while the sum is 42.

The spelling of 1131666313155 in words is "one trillion, one hundred thirty-one billion, six hundred sixty-six million, three hundred thirteen thousand, one hundred fifty-five".