72430237067665 has 16 divisors (see below), whose sum is σ = 87072814319040. Its totient is φ = 57839906554560.

The previous prime is 72430237067641. The next prime is 72430237067677. The reversal of 72430237067665 is 56676073203427.

It is not a de Polignac number, because 72430237067665 - 2¹⁹ = 72430236543377 is a prime.

It is a super-2 number, since 2×72430237067665² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3884350 + ... + 12647080.

It is an arithmetic number, because the mean of its divisors is an integer number (5442050894940).

Almost surely, 2^{72430237067665} is an apocalyptic number.

It is an amenable number.

72430237067665 is a deficient number, since it is larger than the sum of its proper divisors (14642577251375).

72430237067665 is a wasteful number, since it uses less digits than its factorization.

72430237067665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8765712.

The product of its (nonzero) digits is 53343360, while the sum is 58.

The spelling of 72430237067665 in words is "seventy-two trillion, four hundred thirty billion, two hundred thirty-seven million, sixty-seven thousand, six hundred sixty-five".