13660326451 has 8 divisors (see below), whose sum is σ = 14276300544. Its totient is φ = 13046189640.

The previous prime is 13660326439. The next prime is 13660326461. The reversal of 13660326451 is 15462306631.

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 13660326451 - 2⁵ = 13660326419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13660326451.

It is not an unprimeable number, because it can be changed into a prime (13660326461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444105 + ... + 473866.

It is an arithmetic number, because the mean of its divisors is an integer number (1784537568).

Almost surely, 2^13660326451 is an apocalyptic number.

13660326451 is a deficient number, since it is larger than the sum of its proper divisors (615974093).

13660326451 is an equidigital number, since it uses as much as digits as its factorization.

13660326451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918641.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 13660326451 in words is "thirteen billion, six hundred sixty million, three hundred twenty-six thousand, four hundred fifty-one".