2656718621088 has 192 divisors, whose sum is σ = 8095600816128. Its totient is φ = 747150243840.

The previous prime is 2656718621071. The next prime is 2656718621119. The reversal of 2656718621088 is 8801268176562.

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, 29393181 + ... + 29483427.

It is an arithmetic number, because the mean of its divisors is an integer number (42164587584).

Almost surely, 2^{2656718621088} is an apocalyptic number.

2656718621088 is a gapful number since it is divisible by the number (28) 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 2656718621088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4047800408064).

2656718621088 is an abundant number, since it is smaller than the sum of its proper divisors (5438882195040).

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

2656718621088 is a wasteful number, since it uses less digits than its factorization.

2656718621088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90955 (or 90947 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 60.

The spelling of 2656718621088 in words is "two trillion, six hundred fifty-six billion, seven hundred eighteen million, six hundred twenty-one thousand, eighty-eight".