72410771665 has 8 divisors (see below), whose sum is σ = 86948671680. Its totient is φ = 57891453552.

The previous prime is 72410771663. The next prime is 72410771681. The reversal of 72410771665 is 56617701427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72410771665 - 2¹ = 72410771663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72410771663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4636899 + ... + 4652488.

It is an arithmetic number, because the mean of its divisors is an integer number (10868583960).

Almost surely, 2^72410771665 is an apocalyptic number.

It is an amenable number.

72410771665 is a deficient number, since it is larger than the sum of its proper divisors (14537900015).

72410771665 is a wasteful number, since it uses less digits than its factorization.

72410771665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290951.

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 72410771665 in words is "seventy-two billion, four hundred ten million, seven hundred seventy-one thousand, six hundred sixty-five".