21167465120977 has 8 divisors (see below), whose sum is σ = 24781422580992. Its totient is φ = 17701016128800.

The previous prime is 21167465120959. The next prime is 21167465120987. The reversal of 21167465120977 is 77902156476112.

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

It is a cyclic number.

It is not a de Polignac number, because 21167465120977 - 2¹¹ = 21167465118929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21167465120987) 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, 36877116649 + ... + 36877117222.

It is an arithmetic number, because the mean of its divisors is an integer number (3097677822624).

Almost surely, 2^{21167465120977} is an apocalyptic number.

It is an amenable number.

21167465120977 is a deficient number, since it is larger than the sum of its proper divisors (3613957460015).

21167465120977 is an equidigital number, since it uses as much as digits as its factorization.

21167465120977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73754233919.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 21167465120977 in words is "twenty-one trillion, one hundred sixty-seven billion, four hundred sixty-five million, one hundred twenty thousand, nine hundred seventy-seven".