20416461556466 has 16 divisors (see below), whose sum is σ = 30723666467328. Its totient is φ = 10175241804000.

The previous prime is 20416461556457. The next prime is 20416461556487. The reversal of 20416461556466 is 66465516461402.

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, 16810391 + ... + 17983941.

It is an arithmetic number, because the mean of its divisors is an integer number (1920229154208).

Almost surely, 2^{20416461556466} is an apocalyptic number.

20416461556466 is a deficient number, since it is larger than the sum of its proper divisors (10307204910862).

20416461556466 is a wasteful number, since it uses less digits than its factorization.

20416461556466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201657.

The product of its (nonzero) digits is 24883200, while the sum is 56.

The spelling of 20416461556466 in words is "twenty trillion, four hundred sixteen billion, four hundred sixty-one million, five hundred fifty-six thousand, four hundred sixty-six".