966454420821 has 8 divisors (see below), whose sum is σ = 1344632237760. Its totient is φ = 616289775552.

The previous prime is 966454420801. The next prime is 966454420823. The reversal of 966454420821 is 128024454669.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 966454420821 - 2⁷ = 966454420693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966454420823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7003292836 + ... + 7003292973.

It is an arithmetic number, because the mean of its divisors is an integer number (168079029720).

Almost surely, 2^966454420821 is an apocalyptic number.

It is an amenable number.

966454420821 is a deficient number, since it is larger than the sum of its proper divisors (378177816939).

966454420821 is a wasteful number, since it uses less digits than its factorization.

966454420821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14006585835.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 966454420821 in words is "nine hundred sixty-six billion, four hundred fifty-four million, four hundred twenty thousand, eight hundred twenty-one".