2005505531404 has 24 divisors (see below), whose sum is σ = 3732311247840. Its totient is φ = 939646046976.

The previous prime is 2005505531347. The next prime is 2005505531411. The reversal of 2005505531404 is 4041355055002.

It is a super-2 number, since 2×2005505531404² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 2005505531404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64379032 + ... + 64410175.

It is an arithmetic number, because the mean of its divisors is an integer number (155512968660).

Almost surely, 2^{2005505531404} is an apocalyptic number.

It is an amenable number.

2005505531404 is a deficient number, since it is larger than the sum of its proper divisors (1726805716436).

2005505531404 is a wasteful number, since it uses less digits than its factorization.

2005505531404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128789457 (or 128789455 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 2005505531404 in words is "two trillion, five billion, five hundred five million, five hundred thirty-one thousand, four hundred four".