21167342007 has 8 divisors (see below), whose sum is σ = 32254997376. Its totient is φ = 12095623992.

The previous prime is 21167341999. The next prime is 21167342033. The reversal of 21167342007 is 70024376112.

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

It is not a de Polignac number, because 21167342007 - 2³ = 21167341999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21167302007) 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, 503984313 + ... + 503984354.

It is an arithmetic number, because the mean of its divisors is an integer number (4031874672).

Almost surely, 2^21167342007 is an apocalyptic number.

21167342007 is a deficient number, since it is larger than the sum of its proper divisors (11087655369).

21167342007 is a wasteful number, since it uses less digits than its factorization.

21167342007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007968677.

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 21167342007 in words is "twenty-one billion, one hundred sixty-seven million, three hundred forty-two thousand, seven".