3551540881122 has 48 divisors (see below), whose sum is σ = 8287147796928. Its totient is φ = 1092752920800.

The previous prime is 3551540881087. The next prime is 3551540881123. The reversal of 3551540881122 is 2211880451553.

It is a happy number.

3551540881122 is a `hidden beast` number, since 3 + 5 + 5 + 1 + 540 + 8 + 81 + 1 + 22 = 666.

3551540881122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3551540881122² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3551540881123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9714747 + ... + 10073697.

It is an arithmetic number, because the mean of its divisors is an integer number (172648912436).

Almost surely, 2^{3551540881122} is an apocalyptic number.

3551540881122 is an abundant number, since it is smaller than the sum of its proper divisors (4735606915806).

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

3551540881122 is a wasteful number, since it uses less digits than its factorization.

3551540881122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401255 (or 401252 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 3551540881122 in words is "three trillion, five hundred fifty-one billion, five hundred forty million, eight hundred eighty-one thousand, one hundred twenty-two".