29959481955140 has 24 divisors (see below), whose sum is σ = 65084391834840. Its totient is φ = 11570558547968.

The previous prime is 29959481955131. The next prime is 29959481955163. The reversal of 29959481955140 is 4155918495992.

It can be written as a sum of positive squares in 4 ways, for example, as 4636606145284 + 25322875809856 = 2153278^2 + 5032184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25827139037 + ... + 25827140196.

It is an arithmetic number, because the mean of its divisors is an integer number (2711849659785).

Almost surely, 2^{29959481955140} is an apocalyptic number.

29959481955140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29959481955140 is an abundant number, since it is smaller than the sum of its proper divisors (35124909879700).

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

29959481955140 is a wasteful number, since it uses less digits than its factorization.

29959481955140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51654279271 (or 51654279269 counting only the distinct ones).

The product of its (nonzero) digits is 209952000, while the sum is 71.

The spelling of 29959481955140 in words is "twenty-nine trillion, nine hundred fifty-nine billion, four hundred eighty-one million, nine hundred fifty-five thousand, one hundred forty".