13551550040 has 32 divisors (see below), whose sum is σ = 34846843680. Its totient is φ = 4646245632.

The previous prime is 13551550039. The next prime is 13551550069. The reversal of 13551550040 is 4005515531.

It is a junction number, because it is equal to n+sod(n) for n = 13551549985 and 13551550012.

It is a congruent number.

It is an unprimeable number.

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, 24198917 + ... + 24199476.

It is an arithmetic number, because the mean of its divisors is an integer number (1088963865).

Almost surely, 2^13551550040 is an apocalyptic number.

13551550040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13551550040 is an abundant number, since it is smaller than the sum of its proper divisors (21295293640).

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

13551550040 is a wasteful number, since it uses less digits than its factorization.

13551550040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48398411 (or 48398407 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 13551550040 in words is "thirteen billion, five hundred fifty-one million, five hundred fifty thousand, forty".