2640611101 has 4 divisors (see below), whose sum is σ = 2642500000. Its totient is φ = 2638722204.

The previous prime is 2640611059. The next prime is 2640611107. The reversal of 2640611101 is 1011160462.

2640611101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2640611101 - 2⁹ = 2640610589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640611107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942351 + ... + 945148.

It is an arithmetic number, because the mean of its divisors is an integer number (660625000).

Almost surely, 2^2640611101 is an apocalyptic number.

It is an amenable number.

2640611101 is a deficient number, since it is larger than the sum of its proper divisors (1888899).

2640611101 is a wasteful number, since it uses less digits than its factorization.

2640611101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888898.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2640611101 is about 51386.8767391053. The cubic root of 2640611101 is about 1382.1912783443.

Adding to 2640611101 its reverse (1011160462), we get a palindrome (3651771563).

The spelling of 2640611101 in words is "two billion, six hundred forty million, six hundred eleven thousand, one hundred one".