29972866168 has 64 divisors (see below), whose sum is σ = 69435302400. Its totient is φ = 11840515200.

The previous prime is 29972866163. The next prime is 29972866169. The reversal of 29972866168 is 86166827992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29972866163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341308 + ... + 420043.

It is an arithmetic number, because the mean of its divisors is an integer number (1084926600).

Almost surely, 2^29972866168 is an apocalyptic number.

29972866168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29972866168 is an abundant number, since it is smaller than the sum of its proper divisors (39462436232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29972866168 is a wasteful number, since it uses less digits than its factorization.

29972866168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761420 (or 761416 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 64.

The spelling of 29972866168 in words is "twenty-nine billion, nine hundred seventy-two million, eight hundred sixty-six thousand, one hundred sixty-eight".