385566319420 has 24 divisors (see below), whose sum is σ = 852304496400. Its totient is φ = 146109341952.

The previous prime is 385566319403. The next prime is 385566319421. The reversal of 385566319420 is 24913665583.

It is a super-2 number, since 2×385566319420² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385566319421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 507323725 + ... + 507324484.

It is an arithmetic number, because the mean of its divisors is an integer number (35512687350).

Almost surely, 2^385566319420 is an apocalyptic number.

It is an amenable number.

385566319420 is an abundant number, since it is smaller than the sum of its proper divisors (466738176980).

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

385566319420 is a wasteful number, since it uses less digits than its factorization.

385566319420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014648237 (or 1014648235 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 385566319420 in words is "three hundred eighty-five billion, five hundred sixty-six million, three hundred nineteen thousand, four hundred twenty".