169401555553 has 8 divisors (see below), whose sum is σ = 170806059200. Its totient is φ = 167999706288.

The previous prime is 169401555523. The next prime is 169401555607. The reversal of 169401555553 is 355555104961.

169401555553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169401555553 is a prime.

It is a super-2 number, since 2×169401555553² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169401555497 and 169401555506.

It is not an unprimeable number, because it can be changed into a prime (169401555523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535326 + ... + 790807.

It is an arithmetic number, because the mean of its divisors is an integer number (21350757400).

Almost surely, 2^169401555553 is an apocalyptic number.

It is an amenable number.

169401555553 is a deficient number, since it is larger than the sum of its proper divisors (1404503647).

169401555553 is a wasteful number, since it uses less digits than its factorization.

169401555553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327191.

The product of its (nonzero) digits is 2025000, while the sum is 49.

The spelling of 169401555553 in words is "one hundred sixty-nine billion, four hundred one million, five hundred fifty-five thousand, five hundred fifty-three".