665148700125 has 288 divisors, whose sum is σ = 1571190566400. Its totient is φ = 264158668800.

The previous prime is 665148700003. The next prime is 665148700171. The reversal of 665148700125 is 521007841566.

665148700125 is a `hidden beast` number, since 6 + 6 + 514 + 8 + 7 + 0 + 0 + 125 = 666.

It is not a de Polignac number, because 665148700125 - 2⁹ = 665148699613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 22610176 + ... + 22639574.

It is an arithmetic number, because the mean of its divisors is an integer number (5455522800).

Almost surely, 2^665148700125 is an apocalyptic number.

665148700125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

665148700125 is an abundant number, since it is smaller than the sum of its proper divisors (906041866275).

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

665148700125 is a wasteful number, since it uses less digits than its factorization.

665148700125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29470 (or 29444 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 665148700125 in words is "six hundred sixty-five billion, one hundred forty-eight million, seven hundred thousand, one hundred twenty-five".