7530621660272 has 20 divisors (see below), whose sum is σ = 14595425318856. Its totient is φ = 3764060287680.

The previous prime is 7530621660269. The next prime is 7530621660277. The reversal of 7530621660272 is 2720661260357.

It is a super-2 number, since 2×7530621660272² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7530621660277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78109223 + ... + 78205574.

Almost surely, 2^{7530621660272} is an apocalyptic number.

It is an amenable number.

7530621660272 is a deficient number, since it is larger than the sum of its proper divisors (7064803658584).

7530621660272 is a wasteful number, since it uses less digits than its factorization.

7530621660272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156317816 (or 156317810 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 7530621660272 in words is "seven trillion, five hundred thirty billion, six hundred twenty-one million, six hundred sixty thousand, two hundred seventy-two".