72545161733 has 16 divisors (see below), whose sum is σ = 83324505600. Its totient is φ = 62464794480.

The previous prime is 72545161721. The next prime is 72545161751. The reversal of 72545161733 is 33716154527.

It is not a de Polignac number, because 72545161733 - 2²⁶ = 72478052869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72545161783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933008 + ... + 1007766.

It is an arithmetic number, because the mean of its divisors is an integer number (5207781600).

Almost surely, 2^72545161733 is an apocalyptic number.

It is an amenable number.

72545161733 is a deficient number, since it is larger than the sum of its proper divisors (10779343867).

72545161733 is a wasteful number, since it uses less digits than its factorization.

72545161733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79432.

The product of its digits is 529200, while the sum is 44.

The spelling of 72545161733 in words is "seventy-two billion, five hundred forty-five million, one hundred sixty-one thousand, seven hundred thirty-three".