72152001220501 has 8 divisors (see below), whose sum is σ = 72703687598784. Its totient is φ = 71600328596160.

The previous prime is 72152001220489. The next prime is 72152001220561. The reversal of 72152001220501 is 10502210025127.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72152001220501 is a prime.

It is a super-2 number, since 2×72152001220501² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72152001220501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72152001220561) 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, 7219261 + ... + 14015053.

It is an arithmetic number, because the mean of its divisors is an integer number (9087960949848).

Almost surely, 2^{72152001220501} is an apocalyptic number.

It is an amenable number.

72152001220501 is a deficient number, since it is larger than the sum of its proper divisors (551686378283).

72152001220501 is a wasteful number, since it uses less digits than its factorization.

72152001220501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876971.

The product of its (nonzero) digits is 2800, while the sum is 28.

Adding to 72152001220501 its reverse (10502210025127), we get a palindrome (82654211245628).

The spelling of 72152001220501 in words is "seventy-two trillion, one hundred fifty-two billion, one million, two hundred twenty thousand, five hundred one".