2664067860 has 96 divisors (see below), whose sum is σ = 8304938880. Its totient is φ = 708984576.

The previous prime is 2664067853. The next prime is 2664067871. The reversal of 2664067860 is 687604662.

2664067860 is digitally balanced in base 2 and base 4, because in such bases 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 (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277704 + ... + 287136.

It is an arithmetic number, because the mean of its divisors is an integer number (86509780).

Almost surely, 2^2664067860 is an apocalyptic number.

2664067860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2664067860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4152469440).

2664067860 is an abundant number, since it is smaller than the sum of its proper divisors (5640871020).

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

2664067860 is a wasteful number, since it uses less digits than its factorization.

2664067860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974 (or 9966 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 2664067860 is about 51614.6089784666. The cubic root of 2664067860 is about 1386.2719243083.

The spelling of 2664067860 in words is "two billion, six hundred sixty-four million, sixty-seven thousand, eight hundred sixty".