20354451145042 has 16 divisors (see below), whose sum is σ = 34898454567360. Its totient is φ = 8722058768208.

The previous prime is 20354451145027. The next prime is 20354451145057. The reversal of 20354451145042 is 24054115445302.

It is an interprime number because it is at equal distance from previous prime (20354451145027) and next prime (20354451145057).

It is a junction number, because it is equal to n+sod(n) for n = 20354451144986 and 20354451145004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106354048 + ... + 106545259.

It is an arithmetic number, because the mean of its divisors is an integer number (2181153410460).

Almost surely, 2^{20354451145042} is an apocalyptic number.

20354451145042 is a deficient number, since it is larger than the sum of its proper divisors (14544003422318).

20354451145042 is a wasteful number, since it uses less digits than its factorization.

20354451145042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212906145.

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 20354451145042 in words is "twenty trillion, three hundred fifty-four billion, four hundred fifty-one million, one hundred forty-five thousand, forty-two".