29955209955 has 16 divisors (see below), whose sum is σ = 52285457664. Its totient is φ = 14523738080.

The previous prime is 29955209951. The next prime is 29955209983. The reversal of 29955209955 is 55990255992.

It is not a de Polignac number, because 29955209955 - 2² = 29955209951 is a prime.

It is a super-2 number, since 2×29955209955² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29955209951) 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, 90773199 + ... + 90773528.

It is an arithmetic number, because the mean of its divisors is an integer number (3267841104).

Almost surely, 2^29955209955 is an apocalyptic number.

29955209955 is a deficient number, since it is larger than the sum of its proper divisors (22330247709).

29955209955 is a wasteful number, since it uses less digits than its factorization.

29955209955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181546746.

The product of its (nonzero) digits is 16402500, while the sum is 60.

The spelling of 29955209955 in words is "twenty-nine billion, nine hundred fifty-five million, two hundred nine thousand, nine hundred fifty-five".