3551451565872 has 80 divisors (see below), whose sum is σ = 10768622803712. Its totient is φ = 987276107520.

The previous prime is 3551451565861. The next prime is 3551451565933. The reversal of 3551451565872 is 2785651541553.

It is a super-2 number, since 2×3551451565872² (a number of 26 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 142822654 + ... + 142847517.

Almost surely, 2^{3551451565872} is an apocalyptic number.

It is an amenable number.

3551451565872 is an abundant number, since it is smaller than the sum of its proper divisors (7217171237840).

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

3551451565872 is a wasteful number, since it uses less digits than its factorization.

3551451565872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285670226 (or 285670220 counting only the distinct ones).

The product of its digits is 25200000, while the sum is 57.

The spelling of 3551451565872 in words is "three trillion, five hundred fifty-one billion, four hundred fifty-one million, five hundred sixty-five thousand, eight hundred seventy-two".