72101206552 has 16 divisors (see below), whose sum is σ = 135273288600. Its totient is φ = 36028329600.

The previous prime is 72101206543. The next prime is 72101206559. The reversal of 72101206552 is 25560210127.

It is a super-3 number, since 3×72101206552³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72101206559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2770449 + ... + 2796352.

Almost surely, 2^72101206552 is an apocalyptic number.

It is an amenable number.

72101206552 is a deficient number, since it is larger than the sum of its proper divisors (63172082048).

72101206552 is a wasteful number, since it uses less digits than its factorization.

72101206552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5568426 (or 5568422 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 72101206552 its reverse (25560210127), we get a palindrome (97661416679).

The spelling of 72101206552 in words is "seventy-two billion, one hundred one million, two hundred six thousand, five hundred fifty-two".