385665870000 has 100 divisors (see below), whose sum is σ = 1244980947320. Its totient is φ = 102844224000.

The previous prime is 385665869951. The next prime is 385665870017. The reversal of 385665870000 is 78566583.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6397765 + ... + 6457764.

Almost surely, 2^385665870000 is an apocalyptic number.

385665870000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385665870000 is an abundant number, since it is smaller than the sum of its proper divisors (859315077320).

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

385665870000 is a wasteful number, since it uses less digits than its factorization.

385665870000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12855560 (or 12855539 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 385665870000 in words is "three hundred eighty-five billion, six hundred sixty-five million, eight hundred seventy thousand".