20870796166 has 8 divisors (see below), whose sum is σ = 34152211944. Its totient is φ = 9486725520.

The previous prime is 20870796131. The next prime is 20870796211. The reversal of 20870796166 is 66169707802.

It is a happy number.

20870796166 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×20870796166³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 474336255 + ... + 474336298.

It is an arithmetic number, because the mean of its divisors is an integer number (4269026493).

Almost surely, 2^20870796166 is an apocalyptic number.

20870796166 is a deficient number, since it is larger than the sum of its proper divisors (13281415778).

20870796166 is a wasteful number, since it uses less digits than its factorization.

20870796166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948672566.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 20870796166 in words is "twenty billion, eight hundred seventy million, seven hundred ninety-six thousand, one hundred sixty-six".