20846440011 has 24 divisors (see below), whose sum is σ = 30058292880. Its totient is φ = 12834961216.

The previous prime is 20846440003. The next prime is 20846440073. The reversal of 20846440011 is 11004464802.

It is not a de Polignac number, because 20846440011 - 2³ = 20846440003 is a prime.

It is a super-2 number, since 2×20846440011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20846444011) 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 23 ways as a sum of consecutive naturals, for example, 180456 + ... + 272501.

It is an arithmetic number, because the mean of its divisors is an integer number (1252428870).

Almost surely, 2^20846440011 is an apocalyptic number.

20846440011 is a deficient number, since it is larger than the sum of its proper divisors (9211852869).

20846440011 is a wasteful number, since it uses less digits than its factorization.

20846440011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453035 (or 453012 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 20846440011 in words is "twenty billion, eight hundred forty-six million, four hundred forty thousand, eleven".