666055101500 has 48 divisors (see below), whose sum is σ = 1455104685216. Its totient is φ = 266341392000.

The previous prime is 666055101427. The next prime is 666055101527. The reversal of 666055101500 is 5101550666.

It is a congruent number.

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, 1465544 + ... + 1865456.

It is an arithmetic number, because the mean of its divisors is an integer number (30314680942).

Almost surely, 2^666055101500 is an apocalyptic number.

It is an amenable number.

666055101500 is an abundant number, since it is smaller than the sum of its proper divisors (789049583716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666055101500 is a wasteful number, since it uses less digits than its factorization.

666055101500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403263 (or 403251 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 666055101500 in words is "six hundred sixty-six billion, fifty-five million, one hundred one thousand, five hundred".