2051106707520 has 504 divisors, whose sum is σ = 7647165092736. Its totient is φ = 504373948416.

The previous prime is 2051106707497. The next prime is 2051106707537. The reversal of 2051106707520 is 257076011502.

2051106707520 is a `hidden beast` number, since 2 + 0 + 51 + 10 + 6 + 70 + 7 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 741273177 + ... + 741275943.

Almost surely, 2^{2051106707520} is an apocalyptic number.

2051106707520 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 2051106707520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3823582546368).

2051106707520 is an abundant number, since it is smaller than the sum of its proper divisors (5596058385216).

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

2051106707520 is a wasteful number, since it uses less digits than its factorization.

2051106707520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 2051106707520 in words is "two trillion, fifty-one billion, one hundred six million, seven hundred seven thousand, five hundred twenty".