2055761129820 has 96 divisors (see below), whose sum is σ = 5857306963200. Its totient is φ = 538578653184.

The previous prime is 2055761129783. The next prime is 2055761129833. The reversal of 2055761129820 is 289211675502.

It is a self number, because there is not a number n which added to its sum of digits gives 2055761129820.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 5581116 + ... + 5938044.

It is an arithmetic number, because the mean of its divisors is an integer number (61013614200).

Almost surely, 2^{2055761129820} is an apocalyptic number.

2055761129820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055761129820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2928653481600).

2055761129820 is an abundant number, since it is smaller than the sum of its proper divisors (3801545833380).

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

2055761129820 is a wasteful number, since it uses less digits than its factorization.

2055761129820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358627 (or 358625 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 2055761129820 in words is "two trillion, fifty-five billion, seven hundred sixty-one million, one hundred twenty-nine thousand, eight hundred twenty".