20301690256 has 45 divisors (see below), whose sum is σ = 39755268651. Its totient is φ = 10043412192.

The previous prime is 20301690221. The next prime is 20301690281. The reversal of 20301690256 is 65209610302.

The square root of 20301690256 is 142484.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 102018445 + ... + 102018643.

Almost surely, 2^20301690256 is an apocalyptic number.

20301690256 is the 142484-th square number.

It is an amenable number.

20301690256 is a deficient number, since it is larger than the sum of its proper divisors (19453578395).

20301690256 is an frugal number, since it uses more digits than its factorization.

20301690256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 20301690256 in words is "twenty billion, three hundred one million, six hundred ninety thousand, two hundred fifty-six".