20343654455342 has 4 divisors (see below), whose sum is σ = 30515481683016. Its totient is φ = 10171827227670.

The previous prime is 20343654455291. The next prime is 20343654455413. The reversal of 20343654455342 is 24355445634302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5085913613834 + ... + 5085913613837.

It is an arithmetic number, because the mean of its divisors is an integer number (7628870420754).

Almost surely, 2^{20343654455342} is an apocalyptic number.

20343654455342 is a deficient number, since it is larger than the sum of its proper divisors (10171827227674).

20343654455342 is a wasteful number, since it uses less digits than its factorization.

20343654455342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171827227673.

The product of its (nonzero) digits is 20736000, while the sum is 50.

The spelling of 20343654455342 in words is "twenty trillion, three hundred forty-three billion, six hundred fifty-four million, four hundred fifty-five thousand, three hundred forty-two".