20286077146 has 8 divisors (see below), whose sum is σ = 30430814580. Its totient is φ = 10142472288.

The previous prime is 20286077137. The next prime is 20286077159. The reversal of 20286077146 is 64177068202.

It can be written as a sum of positive squares in 2 ways, for example, as 18930732921 + 1355344225 = 137589^2 + 36815^2 .

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, 236851 + ... + 310918.

Almost surely, 2^20286077146 is an apocalyptic number.

20286077146 is a deficient number, since it is larger than the sum of its proper divisors (10144737434).

20286077146 is a wasteful number, since it uses less digits than its factorization.

20286077146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566288.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 20286077146 in words is "twenty billion, two hundred eighty-six million, seventy-seven thousand, one hundred forty-six".