20354452556331 has 32 divisors (see below), whose sum is σ = 28853765614080. Its totient is φ = 12726721728000.

The previous prime is 20354452556329. The next prime is 20354452556359. The reversal of 20354452556331 is 13365525445302.

It is not a de Polignac number, because 20354452556331 - 2¹ = 20354452556329 is a prime.

It is a super-2 number, since 2×20354452556331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20354452556311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51853506 + ... + 52244568.

It is an arithmetic number, because the mean of its divisors is an integer number (901680175440).

Almost surely, 2^{20354452556331} is an apocalyptic number.

20354452556331 is a deficient number, since it is larger than the sum of its proper divisors (8499313057749).

20354452556331 is a wasteful number, since it uses less digits than its factorization.

20354452556331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400227.

The product of its (nonzero) digits is 6480000, while the sum is 48.

The spelling of 20354452556331 in words is "twenty trillion, three hundred fifty-four billion, four hundred fifty-two million, five hundred fifty-six thousand, three hundred thirty-one".