105342642456 has 16 divisors (see below), whose sum is σ = 263356606200. Its totient is φ = 35114214144.

The previous prime is 105342642407. The next prime is 105342642497. The reversal of 105342642456 is 654246243501.

It is a happy number.

It is a super-2 number, since 2×105342642456² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2194638361 + ... + 2194638408.

Almost surely, 2^105342642456 is an apocalyptic number.

It is an amenable number.

105342642456 is an abundant number, since it is smaller than the sum of its proper divisors (158013963744).

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

105342642456 is a wasteful number, since it uses less digits than its factorization.

105342642456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389276778 (or 4389276774 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 105342642456 its reverse (654246243501), we get a palindrome (759588885957).

The spelling of 105342642456 in words is "one hundred five billion, three hundred forty-two million, six hundred forty-two thousand, four hundred fifty-six".