18655135451450 has 48 divisors (see below), whose sum is σ = 35825971324416. Its totient is φ = 7219707422400.

The previous prime is 18655135451401. The next prime is 18655135451531. The reversal of 18655135451450 is 5415453155681.

It is a junction number, because it is equal to n+sod(n) for n = 18655135451392 and 18655135451401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5495084 + ... + 8216216.

It is an arithmetic number, because the mean of its divisors is an integer number (746374402592).

Almost surely, 2^{18655135451450} is an apocalyptic number.

18655135451450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18655135451450 is a deficient number, since it is larger than the sum of its proper divisors (17170835872966).

18655135451450 is a wasteful number, since it uses less digits than its factorization.

18655135451450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725599 (or 2725594 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 53.

The spelling of 18655135451450 in words is "eighteen trillion, six hundred fifty-five billion, one hundred thirty-five million, four hundred fifty-one thousand, four hundred fifty".