20705701260172 has 48 divisors (see below), whose sum is σ = 36856960116480. Its totient is φ = 10175848132032.

The previous prime is 20705701260121. The next prime is 20705701260191. The reversal of 20705701260172 is 27106210750702.

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, 224131263 + ... + 224223625.

It is an arithmetic number, because the mean of its divisors is an integer number (767853335760).

Almost surely, 2^{20705701260172} is an apocalyptic number.

It is an amenable number.

20705701260172 is a deficient number, since it is larger than the sum of its proper divisors (16151258856308).

20705701260172 is a wasteful number, since it uses less digits than its factorization.

20705701260172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94270 (or 94268 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 20705701260172 in words is "twenty trillion, seven hundred five billion, seven hundred one million, two hundred sixty thousand, one hundred seventy-two".