20620553054354 has 8 divisors (see below), whose sum is σ = 33742723179888. Its totient is φ = 9372978661060.

The previous prime is 20620553054263. The next prime is 20620553054357. The reversal of 20620553054354 is 45345035502602.

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

It is not an unprimeable number, because it can be changed into a prime (20620553054357) 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 3 ways as a sum of consecutive naturals, for example, 468648933032 + ... + 468648933075.

It is an arithmetic number, because the mean of its divisors is an integer number (4217840397486).

Almost surely, 2^{20620553054354} is an apocalyptic number.

20620553054354 is a deficient number, since it is larger than the sum of its proper divisors (13122170125534).

20620553054354 is a wasteful number, since it uses less digits than its factorization.

20620553054354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937297866120.

The product of its (nonzero) digits is 2160000, while the sum is 44.

Adding to 20620553054354 its reverse (45345035502602), we get a palindrome (65965588556956).

The spelling of 20620553054354 in words is "twenty trillion, six hundred twenty billion, five hundred fifty-three million, fifty-four thousand, three hundred fifty-four".