13660326377 has 2 divisors, whose sum is σ = 13660326378. Its totient is φ = 13660326376.

The previous prime is 13660326367. The next prime is 13660326389. The reversal of 13660326377 is 77362306631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10987022761 + 2673303616 = 104819^2 + 51704^2 .

It is a cyclic number.

It is not a de Polignac number, because 13660326377 - 2²⁶ = 13593217513 is a prime.

It is a super-2 number, since 2×13660326377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13660326367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830163188 + 6830163189.

It is an arithmetic number, because the mean of its divisors is an integer number (6830163189).

Almost surely, 2^13660326377 is an apocalyptic number.

It is an amenable number.

13660326377 is a deficient number, since it is larger than the sum of its proper divisors (1).

13660326377 is an equidigital number, since it uses as much as digits as its factorization.

13660326377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 44.

The spelling of 13660326377 in words is "thirteen billion, six hundred sixty million, three hundred twenty-six thousand, three hundred seventy-seven".