20461342631152 has 10 divisors (see below), whose sum is σ = 39643851347888. Its totient is φ = 10230671315568.

The previous prime is 20461342631131. The next prime is 20461342631183. The reversal of 20461342631152 is 25113624316402.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 639416957208 + ... + 639416957239.

Almost surely, 2^{20461342631152} is an apocalyptic number.

It is an amenable number.

20461342631152 is a deficient number, since it is larger than the sum of its proper divisors (19182508716736).

20461342631152 is a wasteful number, since it uses less digits than its factorization.

20461342631152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278833914455 (or 1278833914449 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 20461342631152 its reverse (25113624316402), we get a palindrome (45574966947554).

The spelling of 20461342631152 in words is "twenty trillion, four hundred sixty-one billion, three hundred forty-two million, six hundred thirty-one thousand, one hundred fifty-two".