72523541411320 has 64 divisors (see below), whose sum is σ = 163294818073920. Its totient is φ = 28988646564864.

The previous prime is 72523541411309. The next prime is 72523541411351. The reversal of 72523541411320 is 2311414532527.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 812061789 + ... + 812151091.

It is an arithmetic number, because the mean of its divisors is an integer number (2551481532405).

Almost surely, 2^{72523541411320} is an apocalyptic number.

It is an amenable number.

72523541411320 is an abundant number, since it is smaller than the sum of its proper divisors (90771276662600).

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

72523541411320 is a wasteful number, since it uses less digits than its factorization.

72523541411320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103624 (or 103620 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

Adding to 72523541411320 its reverse (2311414532527), we get a palindrome (74834955943847).

The spelling of 72523541411320 in words is "seventy-two trillion, five hundred twenty-three billion, five hundred forty-one million, four hundred eleven thousand, three hundred twenty".