21167336029 has 8 divisors (see below), whose sum is σ = 24201187328. Its totient is φ = 18135971280.

The previous prime is 21167336017. The next prime is 21167336033. The reversal of 21167336029 is 92063376112.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-21167336029 is a prime.

It is a super-2 number, since 2×21167336029² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21167335982 and 21167336000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21167336009) 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, 603357 + ... + 637474.

It is an arithmetic number, because the mean of its divisors is an integer number (3025148416).

Almost surely, 2^21167336029 is an apocalyptic number.

It is an amenable number.

21167336029 is a deficient number, since it is larger than the sum of its proper divisors (3033851299).

21167336029 is a wasteful number, since it uses less digits than its factorization.

21167336029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243275.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 21167336029 in words is "twenty-one billion, one hundred sixty-seven million, three hundred thirty-six thousand, twenty-nine".