2005455551120 has 40 divisors (see below), whose sum is σ = 5328781894464. Its totient is φ = 687584760192.

The previous prime is 2005455551017. The next prime is 2005455551159. The reversal of 2005455551120 is 211555545002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790584754 + ... + 1790585873.

Almost surely, 2^{2005455551120} is an apocalyptic number.

2005455551120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005455551120 is an abundant number, since it is smaller than the sum of its proper divisors (3323326343344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005455551120 is a wasteful number, since it uses less digits than its factorization.

2005455551120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581170647 (or 3581170641 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 2005455551120 in words is "two trillion, five billion, four hundred fifty-five million, five hundred fifty-one thousand, one hundred twenty".