29959946521900 has 18 divisors (see below), whose sum is σ = 65013083952740. Its totient is φ = 11983978608720.

The previous prime is 29959946521849. The next prime is 29959946521903. The reversal of 29959946521900 is 912564995992.

It is a super-2 number, since 2×29959946521900² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29959946521900.

It is not an unprimeable number, because it can be changed into a prime (29959946521903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149799732510 + ... + 149799732709.

Almost surely, 2^{29959946521900} is an apocalyptic number.

29959946521900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29959946521900 is an abundant number, since it is smaller than the sum of its proper divisors (35053137430840).

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

29959946521900 is a wasteful number, since it uses less digits than its factorization.

29959946521900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299599465233 (or 299599465226 counting only the distinct ones).

The product of its (nonzero) digits is 141717600, while the sum is 70.

The spelling of 29959946521900 in words is "twenty-nine trillion, nine hundred fifty-nine billion, nine hundred forty-six million, five hundred twenty-one thousand, nine hundred".