20604201305554 has 16 divisors (see below), whose sum is σ = 30913136194176. Its totient is φ = 10299822786000.

The previous prime is 20604201305497. The next prime is 20604201305557. The reversal of 20604201305554 is 45550310240602.

It is a super-2 number, since 2×20604201305554² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20604201305557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262077319 + ... + 262155925.

It is an arithmetic number, because the mean of its divisors is an integer number (1932071012136).

Almost surely, 2^{20604201305554} is an apocalyptic number.

20604201305554 is a deficient number, since it is larger than the sum of its proper divisors (10308934888622).

20604201305554 is a wasteful number, since it uses less digits than its factorization.

20604201305554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105921.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 20604201305554 in words is "twenty trillion, six hundred four billion, two hundred one million, three hundred five thousand, five hundred fifty-four".