4406121556512 has 48 divisors (see below), whose sum is σ = 12455766711360. Its totient is φ = 1355729709312.

The previous prime is 4406121556477. The next prime is 4406121556517. The reversal of 4406121556512 is 2156551216044.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×4406121556512² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4406121556517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765271812 + ... + 1765274307.

It is an arithmetic number, because the mean of its divisors is an integer number (259495139820).

Almost surely, 2^{4406121556512} is an apocalyptic number.

It is an amenable number.

4406121556512 is an abundant number, since it is smaller than the sum of its proper divisors (8049645154848).

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

4406121556512 is a wasteful number, since it uses less digits than its factorization.

4406121556512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530546145 (or 3530546137 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 4406121556512 in words is "four trillion, four hundred six billion, one hundred twenty-one million, five hundred fifty-six thousand, five hundred twelve".