20170201683356 has 24 divisors (see below), whose sum is σ = 35323690469760. Its totient is φ = 10077719216832.

The previous prime is 20170201683349. The next prime is 20170201683383. The reversal of 20170201683356 is 65338610207102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220506926 + ... + 220598378.

It is an arithmetic number, because the mean of its divisors is an integer number (1471820436240).

Almost surely, 2^{20170201683356} is an apocalyptic number.

It is an amenable number.

20170201683356 is a deficient number, since it is larger than the sum of its proper divisors (15153488786404).

20170201683356 is a wasteful number, since it uses less digits than its factorization.

20170201683356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131213 (or 131211 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 20170201683356 in words is "twenty trillion, one hundred seventy billion, two hundred one million, six hundred eighty-three thousand, three hundred fifty-six".