10556345545 has 16 divisors (see below), whose sum is σ = 12995650368. Its totient is φ = 8228975040.

The previous prime is 10556345539. The next prime is 10556345567. The reversal of 10556345545 is 54554365501.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10556345545 is a prime.

It is a super-2 number, since 2×10556345545² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129099 + ... + 194368.

It is an arithmetic number, because the mean of its divisors is an integer number (812228148).

Almost surely, 2^10556345545 is an apocalyptic number.

It is an amenable number.

10556345545 is a deficient number, since it is larger than the sum of its proper divisors (2439304823).

10556345545 is a wasteful number, since it uses less digits than its factorization.

10556345545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323640.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 10556345545 in words is "ten billion, five hundred fifty-six million, three hundred forty-five thousand, five hundred forty-five".