121652206552156 has 24 divisors (see below), whose sum is σ = 244251122897376. Its totient is φ = 51933793566720.

The previous prime is 121652206552147. The next prime is 121652206552189. The reversal of 121652206552156 is 651255602256121.

It is a congruent number.

It is an unprimeable number.

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, 8452758685 + ... + 8452773076.

It is an arithmetic number, because the mean of its divisors is an integer number (10177130120724).

Almost surely, 2^{121652206552156} is an apocalyptic number.

It is an amenable number.

121652206552156 is an abundant number, since it is smaller than the sum of its proper divisors (122598916345220).

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

121652206552156 is a wasteful number, since it uses less digits than its factorization.

121652206552156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16905532029 (or 16905532027 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 121652206552156 in words is "one hundred twenty-one trillion, six hundred fifty-two billion, two hundred six million, five hundred fifty-two thousand, one hundred fifty-six".