946000555721 has 16 divisors (see below), whose sum is σ = 1078809580800. Its totient is φ = 821779315968.

The previous prime is 946000555699. The next prime is 946000555739. The reversal of 946000555721 is 127555000649.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-946000555721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (946000555921) 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 15 ways as a sum of consecutive naturals, for example, 1956890 + ... + 2391948.

It is an arithmetic number, because the mean of its divisors is an integer number (67425598800).

Almost surely, 2^946000555721 is an apocalyptic number.

It is an amenable number.

946000555721 is a deficient number, since it is larger than the sum of its proper divisors (132809025079).

946000555721 is a wasteful number, since it uses less digits than its factorization.

946000555721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444928.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 946000555721 in words is "nine hundred forty-six billion, five hundred fifty-five thousand, seven hundred twenty-one".