20262056217 has 32 divisors (see below), whose sum is σ = 30216493440. Its totient is φ = 11995568640.

The previous prime is 20262056173. The next prime is 20262056219. The reversal of 20262056217 is 71265026202.

It is not a de Polignac number, because 20262056217 - 2¹⁶ = 20261990681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20262056219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49542 + ... + 207312.

It is an arithmetic number, because the mean of its divisors is an integer number (944265420).

Almost surely, 2^20262056217 is an apocalyptic number.

It is an amenable number.

20262056217 is a deficient number, since it is larger than the sum of its proper divisors (9954437223).

20262056217 is a wasteful number, since it uses less digits than its factorization.

20262056217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157913.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 20262056217 in words is "twenty billion, two hundred sixty-two million, fifty-six thousand, two hundred seventeen".