100530666621472 has 24 divisors (see below), whose sum is σ = 197920679559372. Its totient is φ = 50265097209600.

The previous prime is 100530666621449. The next prime is 100530666621479. The reversal of 100530666621472 is 274126666035001.

It can be written as a sum of positive squares in 2 ways, for example, as 100148935413136 + 381731208336 = 10007444^2 + 617844^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (100530666621479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356179 + ... + 14184082.

Almost surely, 2^{100530666621472} is an apocalyptic number.

It is an amenable number.

100530666621472 is a deficient number, since it is larger than the sum of its proper divisors (97390012937900).

100530666621472 is a wasteful number, since it uses less digits than its factorization.

100530666621472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14756332 (or 14756324 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 100530666621472 in words is "one hundred trillion, five hundred thirty billion, six hundred sixty-six million, six hundred twenty-one thousand, four hundred seventy-two".