385166423547 has 6 divisors (see below), whose sum is σ = 556351500692. Its totient is φ = 256777615692.

The previous prime is 385166423527. The next prime is 385166423549. The reversal of 385166423547 is 745324661583.

385166423547 is a `hidden beast` number, since 3 + 8 + 5 + 16 + 64 + 23 + 547 = 666.

It is not a de Polignac number, because 385166423547 - 2⁷ = 385166423419 is a prime.

It is a super-2 number, since 2×385166423547² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385166423493 and 385166423502.

It is not an unprimeable number, because it can be changed into a prime (385166423549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21398134633 + ... + 21398134650.

Almost surely, 2^385166423547 is an apocalyptic number.

385166423547 is a deficient number, since it is larger than the sum of its proper divisors (171185077145).

385166423547 is a wasteful number, since it uses less digits than its factorization.

385166423547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42796269289 (or 42796269286 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 385166423547 in words is "three hundred eighty-five billion, one hundred sixty-six million, four hundred twenty-three thousand, five hundred forty-seven".