2660020104 has 64 divisors (see below), whose sum is σ = 7930506240. Its totient is φ = 726960960.

The previous prime is 2660020093. The next prime is 2660020109. The reversal of 2660020104 is 4010200662.

It is a happy number.

2660020104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2660020109) 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, 340342 + ... + 348069.

It is an arithmetic number, because the mean of its divisors is an integer number (123914160).

Almost surely, 2^2660020104 is an apocalyptic number.

2660020104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2660020104 is an abundant number, since it is smaller than the sum of its proper divisors (5270486136).

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

2660020104 is a wasteful number, since it uses less digits than its factorization.

2660020104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688450 (or 688446 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2660020104 is about 51575.3827324626. The cubic root of 2660020104 is about 1385.5694728810.

Adding to 2660020104 its reverse (4010200662), we get a palindrome (6670220766).

The spelling of 2660020104 in words is "two billion, six hundred sixty million, twenty thousand, one hundred four".