20854188202 has 8 divisors (see below), whose sum is σ = 32359947300. Its totient is φ = 10067539104.

The previous prime is 20854188193. The next prime is 20854188221. The reversal of 20854188202 is 20288145802.

It can be written as a sum of positive squares in 2 ways, for example, as 20417837881 + 436350321 = 142891^2 + 20889^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179777427 + ... + 179777542.

Almost surely, 2^20854188202 is an apocalyptic number.

20854188202 is a deficient number, since it is larger than the sum of its proper divisors (11505759098).

20854188202 is a wasteful number, since it uses less digits than its factorization.

20854188202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359555000.

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 20854188202 in words is "twenty billion, eight hundred fifty-four million, one hundred eighty-eight thousand, two hundred two".