2150017020 has 120 divisors (see below), whose sum is σ = 6763694784. Its totient is φ = 571722624.

The previous prime is 2150016971. The next prime is 2150017031. The reversal of 2150017020 is 207100512.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2150016984 and 2150017002.

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, 641469 + ... + 644811.

Almost surely, 2^2150017020 is an apocalyptic number.

2150017020 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 2150017020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3381847392).

2150017020 is an abundant number, since it is smaller than the sum of its proper divisors (4613677764).

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

2150017020 is a wasteful number, since it uses less digits than its factorization.

2150017020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761 (or 3750 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2150017020 is about 46368.2760084953. The cubic root of 2150017020 is about 1290.6662864142. Note that the first 3 decimals are identical.

Adding to 2150017020 its reverse (207100512), we get a palindrome (2357117532).

The spelling of 2150017020 in words is "two billion, one hundred fifty million, seventeen thousand, twenty".