72441655036 has 24 divisors (see below), whose sum is σ = 129934999040. Its totient is φ = 35320147632.

The previous prime is 72441655003. The next prime is 72441655037. The reversal of 72441655036 is 63055614427.

It is a super-2 number, since 2×72441655036² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 72441654983 and 72441655001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72441655037) 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, 242526 + ... + 451333.

Almost surely, 2^72441655036 is an apocalyptic number.

It is an amenable number.

72441655036 is a deficient number, since it is larger than the sum of its proper divisors (57493344004).

72441655036 is a wasteful number, since it uses less digits than its factorization.

72441655036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694513 (or 694511 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 72441655036 in words is "seventy-two billion, four hundred forty-one million, six hundred fifty-five thousand, thirty-six".