20466061452515 has 96 divisors (see below), whose sum is σ = 31227150495744. Its totient is φ = 12587413893120.

The previous prime is 20466061452511. The next prime is 20466061452521. The reversal of 20466061452515 is 51525416066402.

It is not a de Polignac number, because 20466061452515 - 2² = 20466061452511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20466061452515.

It is not an unprimeable number, because it can be changed into a prime (20466061452511) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 62884487 + ... + 63209103.

It is an arithmetic number, because the mean of its divisors is an integer number (325282817664).

Almost surely, 2^{20466061452515} is an apocalyptic number.

20466061452515 is a deficient number, since it is larger than the sum of its proper divisors (10761089043229).

20466061452515 is a wasteful number, since it uses less digits than its factorization.

20466061452515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324957 (or 324940 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 20466061452515 in words is "twenty trillion, four hundred sixty-six billion, sixty-one million, four hundred fifty-two thousand, five hundred fifteen".