1200166202163 has 16 divisors (see below), whose sum is σ = 1620061382016. Its totient is φ = 790197578880.

The previous prime is 1200166202159. The next prime is 1200166202233. The reversal of 1200166202163 is 3612026610021.

It is not a de Polignac number, because 1200166202163 - 2² = 1200166202159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200166202163.

It is not an unprimeable number, because it can be changed into a prime (1200166002163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110533 + ... + 1553238.

It is an arithmetic number, because the mean of its divisors is an integer number (101253836376).

Almost surely, 2^{1200166202163} is an apocalyptic number.

1200166202163 is a deficient number, since it is larger than the sum of its proper divisors (419895179853).

1200166202163 is a wasteful number, since it uses less digits than its factorization.

1200166202163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666754.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 1200166202163 in words is "one trillion, two hundred billion, one hundred sixty-six million, two hundred two thousand, one hundred sixty-three".