72072165011 has 16 divisors (see below), whose sum is σ = 90069681408. Its totient is φ = 56026706400.

The previous prime is 72072164999. The next prime is 72072165029. The reversal of 72072165011 is 11056127027.

It is not a de Polignac number, because 72072165011 - 2¹⁰ = 72072163987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72072165041) 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, 1079225 + ... + 1144058.

It is an arithmetic number, because the mean of its divisors is an integer number (5629355088).

Almost surely, 2^72072165011 is an apocalyptic number.

72072165011 is a deficient number, since it is larger than the sum of its proper divisors (17997516397).

72072165011 is a wasteful number, since it uses less digits than its factorization.

72072165011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223722.

The product of its (nonzero) digits is 5880, while the sum is 32.

The spelling of 72072165011 in words is "seventy-two billion, seventy-two million, one hundred sixty-five thousand, eleven".