20845666362 has 32 divisors (see below), whose sum is σ = 41927801472. Its totient is φ = 6909179904.

The previous prime is 20845666351. The next prime is 20845666409. The reversal of 20845666362 is 26366654802.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3768843 + ... + 3774369.

It is an arithmetic number, because the mean of its divisors is an integer number (1310243796).

Almost surely, 2^20845666362 is an apocalyptic number.

20845666362 is an abundant number, since it is smaller than the sum of its proper divisors (21082135110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20845666362 is a wasteful number, since it uses less digits than its factorization.

20845666362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8982.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 20845666362 in words is "twenty billion, eight hundred forty-five million, six hundred sixty-six thousand, three hundred sixty-two".