20450055110 has 32 divisors (see below), whose sum is σ = 38755605600. Its totient is φ = 7747868160.

The previous prime is 20450055061. The next prime is 20450055127. The reversal of 20450055110 is 1155005402.

It is a happy number.

It is a super-2 number, since 2×20450055110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1289630 + ... + 1305390.

It is an arithmetic number, because the mean of its divisors is an integer number (1211112675).

Almost surely, 2^20450055110 is an apocalyptic number.

20450055110 is a deficient number, since it is larger than the sum of its proper divisors (18305550490).

20450055110 is a wasteful number, since it uses less digits than its factorization.

20450055110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22616.

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 20450055110 in words is "twenty billion, four hundred fifty million, fifty-five thousand, one hundred ten".