29955210822420 has 144 divisors (see below), whose sum is σ = 94771598527872. Its totient is φ = 7052999416320.

The previous prime is 29955210822413. The next prime is 29955210822437. The reversal of 29955210822420 is 2422801255992.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63987711 + ... + 64454150.

It is an arithmetic number, because the mean of its divisors is an integer number (658136100888).

Almost surely, 2^{29955210822420} is an apocalyptic number.

29955210822420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29955210822420 is an abundant number, since it is smaller than the sum of its proper divisors (64816387705452).

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

29955210822420 is a wasteful number, since it uses less digits than its factorization.

29955210822420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128441922 (or 128441907 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 29955210822420 in words is "twenty-nine trillion, nine hundred fifty-five billion, two hundred ten million, eight hundred twenty-two thousand, four hundred twenty".