16356023442 has 128 divisors (see below), whose sum is σ = 43809361920. Its totient is φ = 4461937920.

The previous prime is 16356023413. The next prime is 16356023473. The reversal of 16356023442 is 24432065361.

16356023442 is a `hidden beast` number, since 1 + 6 + 3 + 5 + 602 + 3 + 4 + 42 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16356023397 and 16356023406.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197043 + ... + 267465.

It is an arithmetic number, because the mean of its divisors is an integer number (342260640).

Almost surely, 2^16356023442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16356023442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21904680960).

16356023442 is an abundant number, since it is smaller than the sum of its proper divisors (27453338478).

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

16356023442 is a wasteful number, since it uses less digits than its factorization.

16356023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70485 (or 70479 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 16356023442 in words is "sixteen billion, three hundred fifty-six million, twenty-three thousand, four hundred forty-two".