16585473942 has 12 divisors (see below), whose sum is σ = 35935193580. Its totient is φ = 5528491308.

The previous prime is 16585473937. The next prime is 16585473943. The reversal of 16585473942 is 24937458561.

It is a happy number.

16585473942 is a `hidden beast` number, since 1 + 6 + 5 + 8 + 547 + 3 + 94 + 2 = 666.

It is a super-2 number, since 2×16585473942² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16585473943) 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, 460707592 + ... + 460707627.

It is an arithmetic number, because the mean of its divisors is an integer number (2994599465).

Almost surely, 2^16585473942 is an apocalyptic number.

16585473942 is an abundant number, since it is smaller than the sum of its proper divisors (19349719638).

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

16585473942 is a wasteful number, since it uses less digits than its factorization.

16585473942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921415227 (or 921415224 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

It can be divided in two parts, 1658 and 5473942, that added together give a square (5475600 = 2340²).

The spelling of 16585473942 in words is "sixteen billion, five hundred eighty-five million, four hundred seventy-three thousand, nine hundred forty-two".