20354353156334 has 8 divisors (see below), whose sum is σ = 30700212219768. Its totient is φ = 10120949083080.

The previous prime is 20354353156327. The next prime is 20354353156343. The reversal of 20354353156334 is 43365135345302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 28113747092 + ... + 28113747815.

It is an arithmetic number, because the mean of its divisors is an integer number (3837526527471).

Almost surely, 2^{20354353156334} is an apocalyptic number.

20354353156334 is a deficient number, since it is larger than the sum of its proper divisors (10345859063434).

20354353156334 is a wasteful number, since it uses less digits than its factorization.

20354353156334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56227495090.

The product of its (nonzero) digits is 5832000, while the sum is 47.

The spelling of 20354353156334 in words is "twenty trillion, three hundred fifty-four billion, three hundred fifty-three million, one hundred fifty-six thousand, three hundred thirty-four".