2051170000 has 200 divisors, whose sum is σ = 5613078240. Its totient is φ = 719040000.

The previous prime is 2051169943. The next prime is 2051170027. The reversal of 2051170000 is 711502.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3189679 + ... + 3190321.

Almost surely, 2^2051170000 is an apocalyptic number.

2051170000 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 2051170000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2806539120).

2051170000 is an abundant number, since it is smaller than the sum of its proper divisors (3561908240).

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

2051170000 is a wasteful number, since it uses less digits than its factorization.

2051170000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 2051170000 is about 45289.8443362306. The cubic root of 2051170000 is about 1270.5757201254.

Adding to 2051170000 its reverse (711502), we get a palindrome (2051881502).

The spelling of 2051170000 in words is "two billion, fifty-one million, one hundred seventy thousand".