133685973205 has 16 divisors (see below), whose sum is σ = 166225837680. Its totient is φ = 103092369408.

The previous prime is 133685973199. The next prime is 133685973251. The reversal of 133685973205 is 502379586331.

It can be written as a sum of positive squares in 8 ways, for example, as 54338407236 + 79347565969 = 233106^2 + 281687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133685973205 is a prime.

It is a congruent number.

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, 663132 + ... + 840901.

It is an arithmetic number, because the mean of its divisors is an integer number (10389114855).

Almost surely, 2^133685973205 is an apocalyptic number.

It is an amenable number.

133685973205 is a deficient number, since it is larger than the sum of its proper divisors (32539864475).

133685973205 is a wasteful number, since it uses less digits than its factorization.

133685973205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504680.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 133685973205 in words is "one hundred thirty-three billion, six hundred eighty-five million, nine hundred seventy-three thousand, two hundred five".