13453633621554 has 16 divisors (see below), whose sum is σ = 30751162563648. Its totient is φ = 3843895320432.

The previous prime is 13453633621481. The next prime is 13453633621591. The reversal of 13453633621554 is 45512633635431.

It is a super-3 number, since 3×13453633621554³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13453633621497 and 13453633621506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160162304977 + ... + 160162305060.

It is an arithmetic number, because the mean of its divisors is an integer number (1921947660228).

Almost surely, 2^{13453633621554} is an apocalyptic number.

13453633621554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13453633621554 is an abundant number, since it is smaller than the sum of its proper divisors (17297528942094).

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

13453633621554 is a wasteful number, since it uses less digits than its factorization.

13453633621554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320324610049.

The product of its digits is 11664000, while the sum is 51.

The spelling of 13453633621554 in words is "thirteen trillion, four hundred fifty-three billion, six hundred thirty-three million, six hundred twenty-one thousand, five hundred fifty-four".