20217057710 has 32 divisors (see below), whose sum is σ = 36950014080. Its totient is φ = 7962638112.

The previous prime is 20217057703. The next prime is 20217057739. The reversal of 20217057710 is 1775071202.

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, 1963997 + ... + 1974263.

It is an arithmetic number, because the mean of its divisors is an integer number (1154687940).

Almost surely, 2^20217057710 is an apocalyptic number.

20217057710 is a deficient number, since it is larger than the sum of its proper divisors (16732956370).

20217057710 is a wasteful number, since it uses less digits than its factorization.

20217057710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280.

The product of its (nonzero) digits is 6860, while the sum is 32.

The spelling of 20217057710 in words is "twenty billion, two hundred seventeen million, fifty-seven thousand, seven hundred ten".