10556559998 has 8 divisors (see below), whose sum is σ = 15838062192. Its totient is φ = 5277205936.

The previous prime is 10556559997. The next prime is 10556560031. The reversal of 10556559998 is 89995565501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10556559998² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10556559998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10556559991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524690 + ... + 544437.

It is an arithmetic number, because the mean of its divisors is an integer number (1979757774).

Almost surely, 2^10556559998 is an apocalyptic number.

10556559998 is a deficient number, since it is larger than the sum of its proper divisors (5281502194).

10556559998 is a wasteful number, since it uses less digits than its factorization.

10556559998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074066.

The product of its (nonzero) digits is 21870000, while the sum is 62.

The spelling of 10556559998 in words is "ten billion, five hundred fifty-six million, five hundred fifty-nine thousand, nine hundred ninety-eight".