20313455464 has 16 divisors (see below), whose sum is σ = 38093644800. Its totient is φ = 10155150192.

The previous prime is 20313455443. The next prime is 20313455521. The reversal of 20313455464 is 46455431302.

It is a super-3 number, since 3×20313455464³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 in 3 ways as a sum of consecutive naturals, for example, 141544 + ... + 246295.

It is an arithmetic number, because the mean of its divisors is an integer number (2380852800).

Almost surely, 2^20313455464 is an apocalyptic number.

It is an amenable number.

20313455464 is a deficient number, since it is larger than the sum of its proper divisors (17780189336).

20313455464 is a wasteful number, since it uses less digits than its factorization.

20313455464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394392 (or 394388 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 20313455464 its reverse (46455431302), we get a palindrome (66768886766).

The spelling of 20313455464 in words is "twenty billion, three hundred thirteen million, four hundred fifty-five thousand, four hundred sixty-four".