1691120001202 has 16 divisors (see below), whose sum is σ = 2647047756672. Its totient is φ = 808772896800.

The previous prime is 1691120001143. The next prime is 1691120001209. The reversal of 1691120001202 is 2021000211961.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1691120001209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109203 + ... + 2147689.

It is an arithmetic number, because the mean of its divisors is an integer number (165440484792).

Almost surely, 2^{1691120001202} is an apocalyptic number.

1691120001202 is a deficient number, since it is larger than the sum of its proper divisors (955927755470).

1691120001202 is a wasteful number, since it uses less digits than its factorization.

1691120001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073913.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 1691120001202 in words is "one trillion, six hundred ninety-one billion, one hundred twenty million, one thousand, two hundred two".