10646340340 has 24 divisors (see below), whose sum is σ = 22375736712. Its totient is φ = 4255027200.

The previous prime is 10646340337. The next prime is 10646340361. The reversal of 10646340340 is 4304364601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 145009764 + 10501330576 = 12042^2 + 102476^2 .

It is a super-2 number, since 2×10646340340² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194361 + ... + 243040.

It is an arithmetic number, because the mean of its divisors is an integer number (932322363).

Almost surely, 2^10646340340 is an apocalyptic number.

10646340340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10646340340 is an abundant number, since it is smaller than the sum of its proper divisors (11729396372).

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

10646340340 is a wasteful number, since it uses less digits than its factorization.

10646340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438627 (or 438625 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 10646340340 in words is "ten billion, six hundred forty-six million, three hundred forty thousand, three hundred forty".