1585655469950 has 96 divisors (see below), whose sum is σ = 3205925760000. Its totient is φ = 581273107200.

The previous prime is 1585655469913. The next prime is 1585655469953. The reversal of 1585655469950 is 599645565851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1585655469953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89784221 + ... + 89801879.

It is an arithmetic number, because the mean of its divisors is an integer number (33395060000).

Almost surely, 2^{1585655469950} is an apocalyptic number.

1585655469950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1585655469950 is an abundant number, since it is smaller than the sum of its proper divisors (1620270290050).

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

1585655469950 is a wasteful number, since it uses less digits than its factorization.

1585655469950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20770 (or 20765 counting only the distinct ones).

The product of its (nonzero) digits is 291600000, while the sum is 68.

The spelling of 1585655469950 in words is "one trillion, five hundred eighty-five billion, six hundred fifty-five million, four hundred sixty-nine thousand, nine hundred fifty".