20431041515162 has 8 divisors (see below), whose sum is σ = 30648876832692. Its totient is φ = 10214749237600.

The previous prime is 20431041515149. The next prime is 20431041515191. The reversal of 20431041515162 is 26151514013402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20413688458801 + 17353056361 = 4518151^2 + 131731^2 .

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, 385726889 + ... + 385779852.

Almost surely, 2^{20431041515162} is an apocalyptic number.

20431041515162 is a deficient number, since it is larger than the sum of its proper divisors (10217835317530).

20431041515162 is a wasteful number, since it uses less digits than its factorization.

20431041515162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771519984.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 20431041515162 its reverse (26151514013402), we get a palindrome (46582555528564).

The spelling of 20431041515162 in words is "twenty trillion, four hundred thirty-one billion, forty-one million, five hundred fifteen thousand, one hundred sixty-two".