20101720706 has 8 divisors (see below), whose sum is σ = 30215531520. Its totient is φ = 10029876868.

The previous prime is 20101720687. The next prime is 20101720721. The reversal of 20101720706 is 60702710102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10490546 + ... + 10492461.

It is an arithmetic number, because the mean of its divisors is an integer number (3776941440).

Almost surely, 2^20101720706 is an apocalyptic number.

20101720706 is a deficient number, since it is larger than the sum of its proper divisors (10113810814).

20101720706 is a wasteful number, since it uses less digits than its factorization.

20101720706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20983488.

The product of its (nonzero) digits is 1176, while the sum is 26.

The spelling of 20101720706 in words is "twenty billion, one hundred one million, seven hundred twenty thousand, seven hundred six".