2165061030 has 64 divisors (see below), whose sum is σ = 5723647488. Its totient is φ = 519759360.

The previous prime is 2165061023. The next prime is 2165061037. The reversal of 2165061030 is 301605612.

It is an interprime number because it is at equal distance from previous prime (2165061023) and next prime (2165061037).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165061037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2142 + ... + 65838.

It is an arithmetic number, because the mean of its divisors is an integer number (89431992).

Almost surely, 2^2165061030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165061030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2861823744).

2165061030 is an abundant number, since it is smaller than the sum of its proper divisors (3558586458).

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

2165061030 is a wasteful number, since it uses less digits than its factorization.

2165061030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63821.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2165061030 is about 46530.2163115539. The cubic root of 2165061030 is about 1293.6696245430.

Adding to 2165061030 its reverse (301605612), we get a palindrome (2466666642).

The spelling of 2165061030 in words is "two billion, one hundred sixty-five million, sixty-one thousand, thirty".