10326640655 has 8 divisors (see below), whose sum is σ = 12576923952. Its totient is φ = 8138009088.

The previous prime is 10326640591. The next prime is 10326640669. The reversal of 10326640655 is 55604662301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10326640655 - 2⁶ = 10326640591 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 15412562 + ... + 15413231.

It is an arithmetic number, because the mean of its divisors is an integer number (1572115494).

Almost surely, 2^10326640655 is an apocalyptic number.

10326640655 is a deficient number, since it is larger than the sum of its proper divisors (2250283297).

10326640655 is an equidigital number, since it uses as much as digits as its factorization.

10326640655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30825865.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 10326640655 in words is "ten billion, three hundred twenty-six million, six hundred forty thousand, six hundred fifty-five".