10340064640 has 32 divisors (see below), whose sum is σ = 24719218560. Its totient is φ = 4136025600.

The previous prime is 10340064629. The next prime is 10340064671. The reversal of 10340064640 is 4646004301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 10340064599 and 10340064608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8077536 + ... + 8078815.

It is an arithmetic number, because the mean of its divisors is an integer number (772475580).

Almost surely, 2^10340064640 is an apocalyptic number.

10340064640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10340064640 is an abundant number, since it is smaller than the sum of its proper divisors (14379153920).

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

10340064640 is an equidigital number, since it uses as much as digits as its factorization.

10340064640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16156370 (or 16156358 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 10340064640 its reverse (4646004301), we get a palindrome (14986068941).

The spelling of 10340064640 in words is "ten billion, three hundred forty million, sixty-four thousand, six hundred forty".