14661502553 has 2 divisors, whose sum is σ = 14661502554. Its totient is φ = 14661502552.

The previous prime is 14661502517. The next prime is 14661502621. The reversal of 14661502553 is 35520516641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13889329609 + 772172944 = 117853^2 + 27788^2 .

It is a cyclic number.

It is not a de Polignac number, because 14661502553 - 2⁶ = 14661502489 is a prime.

It is a super-2 number, since 2×14661502553² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14661508553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7330751276 + 7330751277.

It is an arithmetic number, because the mean of its divisors is an integer number (7330751277).

Almost surely, 2^14661502553 is an apocalyptic number.

It is an amenable number.

14661502553 is a deficient number, since it is larger than the sum of its proper divisors (1).

14661502553 is an equidigital number, since it uses as much as digits as its factorization.

14661502553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 14661502553 in words is "fourteen billion, six hundred sixty-one million, five hundred two thousand, five hundred fifty-three".