2051105501620 has 48 divisors (see below), whose sum is σ = 4984965296640. Its totient is φ = 694334444544.

The previous prime is 2051105501579. The next prime is 2051105501639. The reversal of 2051105501620 is 261055011502.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 15 ways as a sum of consecutive naturals, for example, 92715229 + ... + 92737348.

It is an arithmetic number, because the mean of its divisors is an integer number (103853443680).

Almost surely, 2^{2051105501620} is an apocalyptic number.

2051105501620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051105501620 is an abundant number, since it is smaller than the sum of its proper divisors (2933859795020).

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

2051105501620 is a wasteful number, since it uses less digits than its factorization.

2051105501620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185452672 (or 185452670 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 2051105501620 in words is "two trillion, fifty-one billion, one hundred five million, five hundred one thousand, six hundred twenty".