2664026158780 has 96 divisors (see below), whose sum is σ = 6523768202112. Its totient is φ = 894910464000.

The previous prime is 2664026158747. The next prime is 2664026158811. The reversal of 2664026158780 is 878516204662.

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, 1587880 + ... + 2801680.

It is an arithmetic number, because the mean of its divisors is an integer number (67955918772).

Almost surely, 2^{2664026158780} is an apocalyptic number.

2664026158780 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 2664026158780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3261884101056).

2664026158780 is an abundant number, since it is smaller than the sum of its proper divisors (3859742043332).

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

2664026158780 is a wasteful number, since it uses less digits than its factorization.

2664026158780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214135 (or 1214133 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 2664026158780 in words is "two trillion, six hundred sixty-four billion, twenty-six million, one hundred fifty-eight thousand, seven hundred eighty".