121652166632 has 8 divisors (see below), whose sum is σ = 228097812450. Its totient is φ = 60826083312.

The previous prime is 121652166569. The next prime is 121652166641. The reversal of 121652166632 is 236661256121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 71559460036 + 50092706596 = 267506^2 + 223814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 121652166632.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7603260407 + ... + 7603260422.

Almost surely, 2^121652166632 is an apocalyptic number.

It is an amenable number.

121652166632 is a deficient number, since it is larger than the sum of its proper divisors (106445645818).

121652166632 is a wasteful number, since it uses less digits than its factorization.

121652166632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206520835 (or 15206520831 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The spelling of 121652166632 in words is "one hundred twenty-one billion, six hundred fifty-two million, one hundred sixty-six thousand, six hundred thirty-two".