13155204450 has 24 divisors (see below), whose sum is σ = 32624907408. Its totient is φ = 3508054480.

The previous prime is 13155204421. The next prime is 13155204467. The reversal of 13155204450 is 5440255131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43850532 + ... + 43850831.

It is an arithmetic number, because the mean of its divisors is an integer number (1359371142).

Almost surely, 2^13155204450 is an apocalyptic number.

13155204450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13155204450 is an abundant number, since it is smaller than the sum of its proper divisors (19469702958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13155204450 is a wasteful number, since it uses less digits than its factorization.

13155204450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87701378 (or 87701373 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 13155204450 its reverse (5440255131), we get a palindrome (18595459581).

The spelling of 13155204450 in words is "thirteen billion, one hundred fifty-five million, two hundred four thousand, four hundred fifty".