72161020511006 has 8 divisors (see below), whose sum is σ = 123704606590320. Its totient is φ = 30926151647568.

The previous prime is 72161020510937. The next prime is 72161020511053. The reversal of 72161020511006 is 60011502016127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577179303951 + ... + 2577179303978.

It is an arithmetic number, because the mean of its divisors is an integer number (15463075823790).

Almost surely, 2^{72161020511006} is an apocalyptic number.

72161020511006 is a deficient number, since it is larger than the sum of its proper divisors (51543586079314).

72161020511006 is a wasteful number, since it uses less digits than its factorization.

72161020511006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154358607938.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 72161020511006 in words is "seventy-two trillion, one hundred sixty-one billion, twenty million, five hundred eleven thousand, six".