21167316046 has 16 divisors (see below), whose sum is σ = 33638171184. Its totient is φ = 9955314304.

The previous prime is 21167316043. The next prime is 21167316077. The reversal of 21167316046 is 64061376112.

It is a junction number, because it is equal to n+sod(n) for n = 21167315996 and 21167316014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21167316043) 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, 120700 + ... + 238543.

It is an arithmetic number, because the mean of its divisors is an integer number (2102385699).

Almost surely, 2^21167316046 is an apocalyptic number.

21167316046 is a deficient number, since it is larger than the sum of its proper divisors (12470855138).

21167316046 is a wasteful number, since it uses less digits than its factorization.

21167316046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360995.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 21167316046 in words is "twenty-one billion, one hundred sixty-seven million, three hundred sixteen thousand, forty-six".