20354643545034 has 128 divisors (see below), whose sum is σ = 44883407923200. Its totient is φ = 6125201406720.

The previous prime is 20354643545003. The next prime is 20354643545081. The reversal of 20354643545034 is 43054534645302.

It is a super-2 number, since 2×20354643545034² (a number of 27 digits) contains 22 as substring.

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, 777208012 + ... + 777234200.

It is an arithmetic number, because the mean of its divisors is an integer number (350651624400).

Almost surely, 2^{20354643545034} is an apocalyptic number.

20354643545034 is an abundant number, since it is smaller than the sum of its proper divisors (24528764378166).

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

20354643545034 is a wasteful number, since it uses less digits than its factorization.

20354643545034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27340.

The product of its (nonzero) digits is 10368000, while the sum is 48.

The spelling of 20354643545034 in words is "twenty trillion, three hundred fifty-four billion, six hundred forty-three million, five hundred forty-five thousand, thirty-four".