1966115000155 has 16 divisors (see below), whose sum is σ = 2381481178560. Its totient is φ = 1558135916928.

The previous prime is 1966115000137. The next prime is 1966115000167. The reversal of 1966115000155 is 5510005116691.

It is a cyclic number.

It is not a de Polignac number, because 1966115000155 - 2²¹ = 1966112903003 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, 2248314 + ... + 2997856.

It is an arithmetic number, because the mean of its divisors is an integer number (148842573660).

Almost surely, 2^{1966115000155} is an apocalyptic number.

1966115000155 is a deficient number, since it is larger than the sum of its proper divisors (415366178405).

1966115000155 is a wasteful number, since it uses less digits than its factorization.

1966115000155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754470.

The product of its (nonzero) digits is 40500, while the sum is 40.

The spelling of 1966115000155 in words is "one trillion, nine hundred sixty-six billion, one hundred fifteen million, one hundred fifty-five", and thus it is an aban number.