72533100656501 has 4 divisors (see below), whose sum is σ = 73086788447904. Its totient is φ = 71979412865100.

The previous prime is 72533100656479. The next prime is 72533100656507. The reversal of 72533100656501 is 10565600133527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72533100656501 is a prime.

It is a super-2 number, since 2×72533100656501² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72533100656507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276843895505 + ... + 276843895766.

It is an arithmetic number, because the mean of its divisors is an integer number (18271697111976).

Almost surely, 2^{72533100656501} is an apocalyptic number.

It is an amenable number.

72533100656501 is a deficient number, since it is larger than the sum of its proper divisors (553687791403).

72533100656501 is a wasteful number, since it uses less digits than its factorization.

72533100656501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553687791402.

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 72533100656501 in words is "seventy-two trillion, five hundred thirty-three billion, one hundred million, six hundred fifty-six thousand, five hundred one".