285655770445 has 16 divisors (see below), whose sum is σ = 345620459520. Its totient is φ = 226636994304.

The previous prime is 285655770409. The next prime is 285655770451. The reversal of 285655770445 is 544077556582.

It is a cyclic number.

It is not a de Polignac number, because 285655770445 - 2¹³ = 285655762253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285655770445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570504 + ... + 1742926.

It is an arithmetic number, because the mean of its divisors is an integer number (21601278720).

Almost surely, 2^285655770445 is an apocalyptic number.

It is an amenable number.

285655770445 is a deficient number, since it is larger than the sum of its proper divisors (59964689075).

285655770445 is a wasteful number, since it uses less digits than its factorization.

285655770445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175164.

The product of its (nonzero) digits is 47040000, while the sum is 58.

The spelling of 285655770445 in words is "two hundred eighty-five billion, six hundred fifty-five million, seven hundred seventy thousand, four hundred forty-five".