10556105551 has 2 divisors, whose sum is σ = 10556105552. Its totient is φ = 10556105550.

The previous prime is 10556105543. The next prime is 10556105563. The reversal of 10556105551 is 15550165501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10556105551 - 2³ = 10556105543 is a prime.

It is a super-2 number, since 2×10556105551² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10556105591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278052775 + 5278052776.

It is an arithmetic number, because the mean of its divisors is an integer number (5278052776).

Almost surely, 2^10556105551 is an apocalyptic number.

10556105551 is a deficient number, since it is larger than the sum of its proper divisors (1).

10556105551 is an equidigital number, since it uses as much as digits as its factorization.

10556105551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 10556105551 in words is "ten billion, five hundred fifty-six million, one hundred five thousand, five hundred fifty-one".