2664105021 has 12 divisors (see below), whose sum is σ = 3848599872. Its totient is φ = 1775863176.

The previous prime is 2664105013. The next prime is 2664105061. The reversal of 2664105021 is 1205014662.

2664105021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2664105021 - 2³ = 2664105013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664105061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136540 + ... + 154826.

It is an arithmetic number, because the mean of its divisors is an integer number (320716656).

Almost surely, 2^2664105021 is an apocalyptic number.

It is an amenable number.

2664105021 is a deficient number, since it is larger than the sum of its proper divisors (1184494851).

2664105021 is a wasteful number, since it uses less digits than its factorization.

2664105021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34480 (or 34477 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2664105021 is about 51614.9689625016. The cubic root of 2664105021 is about 1386.2783699664.

Adding to 2664105021 its reverse (1205014662), we get a palindrome (3869119683).

The spelling of 2664105021 in words is "two billion, six hundred sixty-four million, one hundred five thousand, twenty-one".