72306656721341 has 16 divisors (see below), whose sum is σ = 84064815360000. Its totient is φ = 60906357721968.

The previous prime is 72306656721337. The next prime is 72306656721347. The reversal of 72306656721341 is 14312765660327.

It is a cyclic number.

It is not a de Polignac number, because 72306656721341 - 2² = 72306656721337 is a prime.

It is a super-2 number, since 2×72306656721341² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72306656721347) 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, 27950585 + ... + 30427758.

It is an arithmetic number, because the mean of its divisors is an integer number (5254050960000).

Almost surely, 2^{72306656721341} is an apocalyptic number.

It is an amenable number.

72306656721341 is a deficient number, since it is larger than the sum of its proper divisors (11758158638659).

72306656721341 is a wasteful number, since it uses less digits than its factorization.

72306656721341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58381408.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 72306656721341 in words is "seventy-two trillion, three hundred six billion, six hundred fifty-six million, seven hundred twenty-one thousand, three hundred forty-one".