285515616406 has 16 divisors (see below), whose sum is σ = 437366547648. Its totient is φ = 139739267200.

The previous prime is 285515616389. The next prime is 285515616409. The reversal of 285515616406 is 604616515582.

It is a super-3 number, since 3×285515616406³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285515616406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285515616409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3079075 + ... + 3170446.

It is an arithmetic number, because the mean of its divisors is an integer number (27335409228).

Almost surely, 2^285515616406 is an apocalyptic number.

285515616406 is a deficient number, since it is larger than the sum of its proper divisors (151850931242).

285515616406 is a wasteful number, since it uses less digits than its factorization.

285515616406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250007.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 285515616406 in words is "two hundred eighty-five billion, five hundred fifteen million, six hundred sixteen thousand, four hundred six".