72146150020509 has 16 divisors (see below), whose sum is σ = 101857164372288. Its totient is φ = 45266494291712.

The previous prime is 72146150020489. The next prime is 72146150020513. The reversal of 72146150020509 is 90502005164127.

It is not a de Polignac number, because 72146150020509 - 2⁷ = 72146150020381 is a prime.

It is a super-2 number, since 2×72146150020509² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72146150020579) 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, 24833142 + ... + 27585815.

It is an arithmetic number, because the mean of its divisors is an integer number (6366072773268).

Almost surely, 2^{72146150020509} is an apocalyptic number.

It is an amenable number.

72146150020509 is a deficient number, since it is larger than the sum of its proper divisors (29711014351779).

72146150020509 is a wasteful number, since it uses less digits than its factorization.

72146150020509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52445964.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 72146150020509 in words is "seventy-two trillion, one hundred forty-six billion, one hundred fifty million, twenty thousand, five hundred nine".