72154666341652 has 24 divisors (see below), whose sum is σ = 129353842981440. Its totient is φ = 35196471810240.

The previous prime is 72154666341629. The next prime is 72154666341731. The reversal of 72154666341652 is 25614366645127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480543 + ... + 12022489.

It is an arithmetic number, because the mean of its divisors is an integer number (5389743457560).

Almost surely, 2^{72154666341652} is an apocalyptic number.

It is an amenable number.

72154666341652 is a deficient number, since it is larger than the sum of its proper divisors (57199176639788).

72154666341652 is a wasteful number, since it uses less digits than its factorization.

72154666341652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11580111 (or 11580109 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 58.

The spelling of 72154666341652 in words is "seventy-two trillion, one hundred fifty-four billion, six hundred sixty-six million, three hundred forty-one thousand, six hundred fifty-two".