72067116129 has 4 divisors (see below), whose sum is σ = 96089488176. Its totient is φ = 48044744084.

The previous prime is 72067116083. The next prime is 72067116131. The reversal of 72067116129 is 92161176027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72067116129 - 2⁸ = 72067115873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72067116169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12011186019 + ... + 12011186024.

It is an arithmetic number, because the mean of its divisors is an integer number (24022372044).

Almost surely, 2^72067116129 is an apocalyptic number.

It is an amenable number.

72067116129 is a deficient number, since it is larger than the sum of its proper divisors (24022372047).

72067116129 is a wasteful number, since it uses less digits than its factorization.

72067116129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24022372046.

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 72067116129 in words is "seventy-two billion, sixty-seven million, one hundred sixteen thousand, one hundred twenty-nine".