20408876055 has 48 divisors (see below), whose sum is σ = 35770569120. Its totient is φ = 10763539200.

The previous prime is 20408876039. The next prime is 20408876107. The reversal of 20408876055 is 55067880402.

It is not a de Polignac number, because 20408876055 - 2⁴ = 20408876039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20408876055.

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 47 ways as a sum of consecutive naturals, for example, 2649760 + ... + 2657450.

It is an arithmetic number, because the mean of its divisors is an integer number (745220190).

Almost surely, 2^20408876055 is an apocalyptic number.

20408876055 is a deficient number, since it is larger than the sum of its proper divisors (15361693065).

20408876055 is a wasteful number, since it uses less digits than its factorization.

20408876055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352 (or 8349 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 20408876055 in words is "twenty billion, four hundred eight million, eight hundred seventy-six thousand, fifty-five".