72551543043446 has 16 divisors (see below), whose sum is σ = 109295038380528. Its totient is φ = 36119865446400.

The previous prime is 72551543043443. The next prime is 72551543043467. The reversal of 72551543043446 is 64434034515527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72551543043443) 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, 101404406 + ... + 102117366.

It is an arithmetic number, because the mean of its divisors is an integer number (6830939898783).

Almost surely, 2^{72551543043446} is an apocalyptic number.

72551543043446 is a deficient number, since it is larger than the sum of its proper divisors (36743495337082).

72551543043446 is a wasteful number, since it uses less digits than its factorization.

72551543043446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931567.

The product of its (nonzero) digits is 24192000, while the sum is 53.

The spelling of 72551543043446 in words is "seventy-two trillion, five hundred fifty-one billion, five hundred forty-three million, forty-three thousand, four hundred forty-six".