2081565510 has 32 divisors (see below), whose sum is σ = 5289626592. Its totient is φ = 522432000.

The previous prime is 2081565491. The next prime is 2081565511. The reversal of 2081565510 is 155651802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081565511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040241 + ... + 2041260.

It is an arithmetic number, because the mean of its divisors is an integer number (165300831).

Almost surely, 2^2081565510 is an apocalyptic number.

2081565510 is an abundant number, since it is smaller than the sum of its proper divisors (3208061082).

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

2081565510 is a wasteful number, since it uses less digits than its factorization.

2081565510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081528.

The product of its (nonzero) digits is 12000, while the sum is 33.

The square root of 2081565510 is about 45624.1768144917. The cubic root of 2081565510 is about 1276.8210318412.

The spelling of 2081565510 in words is "two billion, eighty-one million, five hundred sixty-five thousand, five hundred ten".