20354445670141 has 4 divisors (see below), whose sum is σ = 22204849821984. Its totient is φ = 18504041518300.

The previous prime is 20354445670121. The next prime is 20354445670147. The reversal of 20354445670141 is 14107654445302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20354445670141 - 2²¹ = 20354443572989 is a prime.

It is a super-3 number, since 3×20354445670141³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20354445670091 and 20354445670100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354445670147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925202075905 + ... + 925202075926.

It is an arithmetic number, because the mean of its divisors is an integer number (5551212455496).

Almost surely, 2^{20354445670141} is an apocalyptic number.

It is an amenable number.

20354445670141 is a deficient number, since it is larger than the sum of its proper divisors (1850404151843).

20354445670141 is a wasteful number, since it uses less digits than its factorization.

20354445670141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850404151842.

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 20354445670141 in words is "twenty trillion, three hundred fifty-four billion, four hundred forty-five million, six hundred seventy thousand, one hundred forty-one".