20950123146 has 8 divisors (see below), whose sum is σ = 41900246304. Its totient is φ = 6983374380.

The previous prime is 20950123109. The next prime is 20950123163. The reversal of 20950123146 is 64132105902.

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

20950123146 is an admirable 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, 1745843590 + ... + 1745843601.

It is an arithmetic number, because the mean of its divisors is an integer number (5237530788).

Almost surely, 2^20950123146 is an apocalyptic number.

20950123146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20950123146 is a wasteful number, since it uses less digits than its factorization.

20950123146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491687196.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 20950123146 in words is "twenty billion, nine hundred fifty million, one hundred twenty-three thousand, one hundred forty-six".