7481664720130 has 32 divisors (see below), whose sum is σ = 14091846133248. Its totient is φ = 2856455280000.

The previous prime is 7481664720119. The next prime is 7481664720137. The reversal of 7481664720130 is 310274661847.

It is a super-2 number, since 2×7481664720130² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (7481664720137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165281496 + ... + 165326755.

It is an arithmetic number, because the mean of its divisors is an integer number (440370191664).

Almost surely, 2^{7481664720130} is an apocalyptic number.

7481664720130 is a deficient number, since it is larger than the sum of its proper divisors (6610181413118).

7481664720130 is a wasteful number, since it uses less digits than its factorization.

7481664720130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330608362.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 7481664720130 in words is "seven trillion, four hundred eighty-one billion, six hundred sixty-four million, seven hundred twenty thousand, one hundred thirty".