20474454233755 has 8 divisors (see below), whose sum is σ = 25361904599424. Its totient is φ = 15851190374400.

The previous prime is 20474454233749. The next prime is 20474454233791. The reversal of 20474454233755 is 55733245447402.

It is a happy number.

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

It is not a de Polignac number, because 20474454233755 - 2¹⁹ = 20474453709467 is a prime.

It is a super-3 number, since 3×20474454233755³ (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 = 20474454233696 and 20474454233705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66046626406 + ... + 66046626715.

It is an arithmetic number, because the mean of its divisors is an integer number (3170238074928).

Almost surely, 2^{20474454233755} is an apocalyptic number.

20474454233755 is a deficient number, since it is larger than the sum of its proper divisors (4887450365669).

20474454233755 is a wasteful number, since it uses less digits than its factorization.

20474454233755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132093253157.

The product of its (nonzero) digits is 56448000, while the sum is 55.

The spelling of 20474454233755 in words is "twenty trillion, four hundred seventy-four billion, four hundred fifty-four million, two hundred thirty-three thousand, seven hundred fifty-five".