103556443553 has 4 divisors (see below), whose sum is σ = 103585268868. Its totient is φ = 103527618240.

The previous prime is 103556443531. The next prime is 103556443559. The reversal of 103556443553 is 355344655301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14985921889 + 88570521664 = 122417^2 + 297608^2 .

It is a cyclic number.

It is not a de Polignac number, because 103556443553 - 2¹⁶ = 103556378017 is a prime.

It is a super-3 number, since 3×103556443553³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103556443559) 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, 14407268 + ... + 14414453.

It is an arithmetic number, because the mean of its divisors is an integer number (25896317217).

Almost surely, 2^103556443553 is an apocalyptic number.

It is an amenable number.

103556443553 is a deficient number, since it is larger than the sum of its proper divisors (28825315).

103556443553 is an equidigital number, since it uses as much as digits as its factorization.

103556443553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28825314.

The product of its (nonzero) digits is 1620000, while the sum is 44.

The spelling of 103556443553 in words is "one hundred three billion, five hundred fifty-six million, four hundred forty-three thousand, five hundred fifty-three".