121706366496 has 768 divisors, whose sum is σ = 408213872640. Its totient is φ = 31223808000.

The previous prime is 121706366491. The next prime is 121706366497. The reversal of 121706366496 is 694663607121.

It is not an unprimeable number, because it can be changed into a prime (121706366491) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1367487220 + ... + 1367487308.

It is an arithmetic number, because the mean of its divisors is an integer number (531528480).

Almost surely, 2^121706366496 is an apocalyptic number.

121706366496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121706366496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204106936320).

121706366496 is an abundant number, since it is smaller than the sum of its proper divisors (286507506144).

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

121706366496 is a wasteful number, since it uses less digits than its factorization.

121706366496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 121706366496 in words is "one hundred twenty-one billion, seven hundred six million, three hundred sixty-six thousand, four hundred ninety-six".