121656166702 has 32 divisors (see below), whose sum is σ = 211500149760. Its totient is φ = 51406000800.

The previous prime is 121656166661. The next prime is 121656166711. The reversal of 121656166702 is 207661656121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157953 + ... + 517939.

It is an arithmetic number, because the mean of its divisors is an integer number (6609379680).

Almost surely, 2^121656166702 is an apocalyptic number.

121656166702 is a deficient number, since it is larger than the sum of its proper divisors (89843983058).

121656166702 is a wasteful number, since it uses less digits than its factorization.

121656166702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360336.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 121656166702 in words is "one hundred twenty-one billion, six hundred fifty-six million, one hundred sixty-six thousand, seven hundred two".