20712200551466 has 16 divisors (see below), whose sum is σ = 31084926871680. Its totient is φ = 10350559164960.

The previous prime is 20712200551439. The next prime is 20712200551477. The reversal of 20712200551466 is 66415500221702.

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, 46910111 + ... + 47349581.

It is an arithmetic number, because the mean of its divisors is an integer number (1942807929480).

Almost surely, 2^{20712200551466} is an apocalyptic number.

20712200551466 is a deficient number, since it is larger than the sum of its proper divisors (10372726320214).

20712200551466 is a wasteful number, since it uses less digits than its factorization.

20712200551466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452029.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 20712200551466 in words is "twenty trillion, seven hundred twelve billion, two hundred million, five hundred fifty-one thousand, four hundred sixty-six".