16108408553 has 4 divisors (see below), whose sum is σ = 16112389008. Its totient is φ = 16104428100.

The previous prime is 16108408543. The next prime is 16108408567. The reversal of 16108408553 is 35580480161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16108408553 - 2¹² = 16108404457 is a prime.

It is a super-2 number, since 2×16108408553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16108408553.

It is not an unprimeable number, because it can be changed into a prime (16108408543) 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, 1984151 + ... + 1992252.

It is an arithmetic number, because the mean of its divisors is an integer number (4028097252).

Almost surely, 2^16108408553 is an apocalyptic number.

It is an amenable number.

16108408553 is a deficient number, since it is larger than the sum of its proper divisors (3980455).

16108408553 is an equidigital number, since it uses as much as digits as its factorization.

16108408553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980454.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 16108408553 in words is "sixteen billion, one hundred eight million, four hundred eight thousand, five hundred fifty-three".