29955210829991 has 16 divisors (see below), whose sum is σ = 30110026598400. Its totient is φ = 29800740261600.

The previous prime is 29955210829979. The next prime is 29955210830021. The reversal of 29955210829991 is 19992801255992.

It is a cyclic number.

It is not a de Polignac number, because 29955210829991 - 2³⁰ = 29954137088167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29955210829961) 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, 959502980 + ... + 959534198.

It is an arithmetic number, because the mean of its divisors is an integer number (1881876662400).

Almost surely, 2^{29955210829991} is an apocalyptic number.

29955210829991 is a deficient number, since it is larger than the sum of its proper divisors (154815768409).

29955210829991 is a wasteful number, since it uses less digits than its factorization.

29955210829991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36590.

The product of its (nonzero) digits is 94478400, while the sum is 71.

The spelling of 29955210829991 in words is "twenty-nine trillion, nine hundred fifty-five billion, two hundred ten million, eight hundred twenty-nine thousand, nine hundred ninety-one".