66130124664550 has 24 divisors (see below), whose sum is σ = 124219873785312. Its totient is φ = 26190148380000.

The previous prime is 66130124664511. The next prime is 66130124664563. The reversal of 66130124664550 is 5546642103166.

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

It is a junction number, because it is equal to n+sod(n) for n = 66130124664494 and 66130124664503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6547532046 + ... + 6547542145.

It is an arithmetic number, because the mean of its divisors is an integer number (5175828074388).

Almost surely, 2^{66130124664550} is an apocalyptic number.

66130124664550 is a deficient number, since it is larger than the sum of its proper divisors (58089749120762).

66130124664550 is a wasteful number, since it uses less digits than its factorization.

66130124664550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13095074304 (or 13095074299 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 66130124664550 in words is "sixty-six trillion, one hundred thirty billion, one hundred twenty-four million, six hundred sixty-four thousand, five hundred fifty".