72150065155660 has 48 divisors (see below), whose sum is σ = 152871605786592. Its totient is φ = 28601703244800.

The previous prime is 72150065155607. The next prime is 72150065155669. The reversal of 72150065155660 is 6655156005127.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72150065155669) 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, 20545870 + ... + 23799850.

It is an arithmetic number, because the mean of its divisors is an integer number (3184825120554).

Almost surely, 2^{72150065155660} is an apocalyptic number.

It is an amenable number.

72150065155660 is an abundant number, since it is smaller than the sum of its proper divisors (80721540630932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72150065155660 is a wasteful number, since it uses less digits than its factorization.

72150065155660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263914 (or 3263912 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 72150065155660 in words is "seventy-two trillion, one hundred fifty billion, sixty-five million, one hundred fifty-five thousand, six hundred sixty".