3551472365640 has 64 divisors (see below), whose sum is σ = 10753991127360. Its totient is φ = 938208272640.

The previous prime is 3551472365593. The next prime is 3551472365641. The reversal of 3551472365640 is 465632741553.

3551472365640 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 2×3551472365640² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3551472365641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138284371 + ... + 138310050.

It is an arithmetic number, because the mean of its divisors is an integer number (168031111365).

Almost surely, 2^{3551472365640} is an apocalyptic number.

3551472365640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3551472365640 is an abundant number, since it is smaller than the sum of its proper divisors (7202518761720).

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

3551472365640 is a wasteful number, since it uses less digits than its factorization.

3551472365640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276594542 (or 276594538 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 51.

The spelling of 3551472365640 in words is "three trillion, five hundred fifty-one billion, four hundred seventy-two million, three hundred sixty-five thousand, six hundred forty".