133171211870 has 16 divisors (see below), whose sum is σ = 250130276640. Its totient is φ = 50952463584.

The previous prime is 133171211863. The next prime is 133171211933. The reversal of 133171211870 is 78112171331.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133171211870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289502405 + ... + 289502864.

It is an arithmetic number, because the mean of its divisors is an integer number (15633142290).

Almost surely, 2^133171211870 is an apocalyptic number.

133171211870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133171211870 is a deficient number, since it is larger than the sum of its proper divisors (116959064770).

133171211870 is a wasteful number, since it uses less digits than its factorization.

133171211870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579005299.

The product of its (nonzero) digits is 7056, while the sum is 35.

The spelling of 133171211870 in words is "one hundred thirty-three billion, one hundred seventy-one million, two hundred eleven thousand, eight hundred seventy".