13551624061 has 2 divisors, whose sum is σ = 13551624062. Its totient is φ = 13551624060.

The previous prime is 13551624041. The next prime is 13551624109. The reversal of 13551624061 is 16042615531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13013105625 + 538518436 = 114075^2 + 23206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13551624061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13551624041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775812030 + 6775812031.

It is an arithmetic number, because the mean of its divisors is an integer number (6775812031).

Almost surely, 2^13551624061 is an apocalyptic number.

It is an amenable number.

13551624061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551624061 is an equidigital number, since it uses as much as digits as its factorization.

13551624061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 13551624061 in words is "thirteen billion, five hundred fifty-one million, six hundred twenty-four thousand, sixty-one".