3551072554640 has 160 divisors (see below), whose sum is σ = 8958352878720. Its totient is φ = 1301311623168.

The previous prime is 3551072554619. The next prime is 3551072554657. The reversal of 3551072554640 is 464552701553.

It is a super-2 number, since 2×3551072554640² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97343444 + ... + 97379916.

It is an arithmetic number, because the mean of its divisors is an integer number (55989705492).

Almost surely, 2^{3551072554640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3551072554640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4479176439360).

3551072554640 is an abundant number, since it is smaller than the sum of its proper divisors (5407280324080).

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

3551072554640 is a wasteful number, since it uses less digits than its factorization.

3551072554640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37201 (or 37195 counting only the distinct ones).

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 3551072554640 in words is "three trillion, five hundred fifty-one billion, seventy-two million, five hundred fifty-four thousand, six hundred forty".