121632435663 has 8 divisors (see below), whose sum is σ = 162600019968. Its totient is φ = 80876570904.

The previous prime is 121632435583. The next prime is 121632435671. The reversal of 121632435663 is 366534236121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121632435663 - 2¹⁶ = 121632370127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121632435163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52928545 + ... + 52930842.

It is an arithmetic number, because the mean of its divisors is an integer number (20325002496).

Almost surely, 2^121632435663 is an apocalyptic number.

121632435663 is a deficient number, since it is larger than the sum of its proper divisors (40967584305).

121632435663 is a wasteful number, since it uses less digits than its factorization.

121632435663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105859773.

The product of its digits is 466560, while the sum is 42.

The spelling of 121632435663 in words is "one hundred twenty-one billion, six hundred thirty-two million, four hundred thirty-five thousand, six hundred sixty-three".