20320461246152 has 32 divisors (see below), whose sum is σ = 38624730526080. Its totient is φ = 10020547059840.

The previous prime is 20320461246149. The next prime is 20320461246167. The reversal of 20320461246152 is 25164216402302.

It is a super-2 number, since 2×20320461246152² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10924877 + ... + 12648867.

It is an arithmetic number, because the mean of its divisors is an integer number (1207022828940).

Almost surely, 2^{20320461246152} is an apocalyptic number.

It is an amenable number.

20320461246152 is a deficient number, since it is larger than the sum of its proper divisors (18304269279928).

20320461246152 is a wasteful number, since it uses less digits than its factorization.

20320461246152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744253 (or 1744249 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 20320461246152 its reverse (25164216402302), we get a palindrome (45484677648454).

The spelling of 20320461246152 in words is "twenty trillion, three hundred twenty billion, four hundred sixty-one million, two hundred forty-six thousand, one hundred fifty-two".