20460500632646 has 16 divisors (see below), whose sum is σ = 31749188315040. Its totient is φ = 9877440874560.

The previous prime is 20460500632639. The next prime is 20460500632657. The reversal of 20460500632646 is 64623600506402.

It is a super-2 number, since 2×20460500632646² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20460500632597 and 20460500632606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16205591 + ... + 17422461.

It is an arithmetic number, because the mean of its divisors is an integer number (1984324269690).

Almost surely, 2^{20460500632646} is an apocalyptic number.

20460500632646 is a deficient number, since it is larger than the sum of its proper divisors (11288687682394).

20460500632646 is a wasteful number, since it uses less digits than its factorization.

20460500632646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506799.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 20460500632646 in words is "twenty trillion, four hundred sixty billion, five hundred million, six hundred thirty-two thousand, six hundred forty-six".