10656645340 has 96 divisors (see below), whose sum is σ = 25123089600. Its totient is φ = 3763968000.

The previous prime is 10656645289. The next prime is 10656645359. The reversal of 10656645340 is 4354665601.

It is a super-2 number, since 2×10656645340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10656645293 and 10656645302.

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, 1173136 + ... + 1182184.

It is an arithmetic number, because the mean of its divisors is an integer number (261698850).

Almost surely, 2^10656645340 is an apocalyptic number.

10656645340 is a gapful number since it is divisible by the number (10) 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 10656645340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12561544800).

10656645340 is an abundant number, since it is smaller than the sum of its proper divisors (14466444260).

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

10656645340 is a wasteful number, since it uses less digits than its factorization.

10656645340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9223 (or 9221 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 10656645340 in words is "ten billion, six hundred fifty-six million, six hundred forty-five thousand, three hundred forty".