121632666053444 has 36 divisors (see below), whose sum is σ = 263417489806464. Its totient is φ = 48118417337952.

The previous prime is 121632666053441. The next prime is 121632666053447. The reversal of 121632666053444 is 444350666236121.

It is an interprime number because it is at equal distance from previous prime (121632666053441) and next prime (121632666053447).

It is a super-2 number, since 2×121632666053444² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121632666053441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12852136652 + ... + 12852146115.

It is an arithmetic number, because the mean of its divisors is an integer number (7317152494624).

Almost surely, 2^{121632666053444} is an apocalyptic number.

121632666053444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121632666053444 is an abundant number, since it is smaller than the sum of its proper divisors (141784823753020).

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

121632666053444 is a wasteful number, since it uses less digits than its factorization.

121632666053444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25704282804 (or 25704282789 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 121632666053444 in words is "one hundred twenty-one trillion, six hundred thirty-two billion, six hundred sixty-six million, fifty-three thousand, four hundred forty-four".