20171065574752 has 12 divisors (see below), whose sum is σ = 39711785350356. Its totient is φ = 10085532787360.

The previous prime is 20171065574719. The next prime is 20171065574837. The reversal of 20171065574752 is 25747556017102.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20171065574752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315172899574 + ... + 315172899637.

It is an arithmetic number, because the mean of its divisors is an integer number (3309315445863).

Almost surely, 2^{20171065574752} is an apocalyptic number.

It is an amenable number.

20171065574752 is a deficient number, since it is larger than the sum of its proper divisors (19540719775604).

20171065574752 is an equidigital number, since it uses as much as digits as its factorization.

20171065574752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630345799221 (or 630345799213 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 52.

The spelling of 20171065574752 in words is "twenty trillion, one hundred seventy-one billion, sixty-five million, five hundred seventy-four thousand, seven hundred fifty-two".