121616618622334 has 16 divisors (see below), whose sum is σ = 199013221995120. Its totient is φ = 55279111829760.

The previous prime is 121616618622299. The next prime is 121616618622337. The reversal of 121616618622334 is 433226816616121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121616618622337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57404019 + ... + 59484910.

It is an arithmetic number, because the mean of its divisors is an integer number (12438326374695).

Almost surely, 2^{121616618622334} is an apocalyptic number.

121616618622334 is a deficient number, since it is larger than the sum of its proper divisors (77396603372786).

121616618622334 is a wasteful number, since it uses less digits than its factorization.

121616618622334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116936235.

The product of its digits is 2985984, while the sum is 52.

The spelling of 121616618622334 in words is "one hundred twenty-one trillion, six hundred sixteen billion, six hundred eighteen million, six hundred twenty-two thousand, three hundred thirty-four".