20463654211 has 32 divisors (see below), whose sum is σ = 27784512000. Its totient is φ = 14553665280.

The previous prime is 20463654193. The next prime is 20463654217. The reversal of 20463654211 is 11245636402.

It is not a de Polignac number, because 20463654211 - 2²¹ = 20461557059 is a prime.

It is a super-2 number, since 2×20463654211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20463654217) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 25761 + ... + 203938.

It is an arithmetic number, because the mean of its divisors is an integer number (868266000).

Almost surely, 2^20463654211 is an apocalyptic number.

20463654211 is a deficient number, since it is larger than the sum of its proper divisors (7320857789).

20463654211 is a wasteful number, since it uses less digits than its factorization.

20463654211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229819.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 20463654211 in words is "twenty billion, four hundred sixty-three million, six hundred fifty-four thousand, two hundred eleven".