29166272128 has 64 divisors (see below), whose sum is σ = 68547525120. Its totient is φ = 12096599040.

The previous prime is 29166272123. The next prime is 29166272129. The reversal of 29166272128 is 82127266192.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (29166272123) 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, 497251 + ... + 552802.

It is an arithmetic number, because the mean of its divisors is an integer number (1071055080).

Almost surely, 2^29166272128 is an apocalyptic number.

29166272128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29166272128 is an abundant number, since it is smaller than the sum of its proper divisors (39381252992).

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

29166272128 is a wasteful number, since it uses less digits than its factorization.

29166272128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050105 (or 1050093 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The spelling of 29166272128 in words is "twenty-nine billion, one hundred sixty-six million, two hundred seventy-two thousand, one hundred twenty-eight".