18066648530 has 32 divisors (see below), whose sum is σ = 37170313344. Its totient is φ = 6193506816.

The previous prime is 18066648469. The next prime is 18066648559. The reversal of 18066648530 is 3584666081.

It is a super-3 number, since 3×18066648530³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046549 + ... + 1063671.

It is an arithmetic number, because the mean of its divisors is an integer number (1161572292).

Almost surely, 2^18066648530 is an apocalyptic number.

18066648530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18066648530 is an abundant number, since it is smaller than the sum of its proper divisors (19103664814).

18066648530 is a wasteful number, since it uses less digits than its factorization.

18066648530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32210.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 18066648530 in words is "eighteen billion, sixty-six million, six hundred forty-eight thousand, five hundred thirty".