1605470443542 has 192 divisors, whose sum is σ = 4114008138240. Its totient is φ = 443073742848.

The previous prime is 1605470443487. The next prime is 1605470443547. The reversal of 1605470443542 is 2453440745061.

1605470443542 is a `hidden beast` number, since 1 + 60 + 5 + 4 + 7 + 0 + 4 + 43 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605470443547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89248273 + ... + 89266259.

It is an arithmetic number, because the mean of its divisors is an integer number (21427125720).

Almost surely, 2^{1605470443542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1605470443542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2057004069120).

1605470443542 is an abundant number, since it is smaller than the sum of its proper divisors (2508537694698).

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

1605470443542 is a wasteful number, since it uses less digits than its factorization.

1605470443542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275 (or 18272 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 1605470443542 in words is "one trillion, six hundred five billion, four hundred seventy million, four hundred forty-three thousand, five hundred forty-two".