121560617606 has 8 divisors (see below), whose sum is σ = 182372076120. Its totient is φ = 60769925568.

The previous prime is 121560617603. The next prime is 121560617621. The reversal of 121560617606 is 606716065121.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121560617603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5176976 + ... + 5200403.

It is an arithmetic number, because the mean of its divisors is an integer number (22796509515).

Almost surely, 2^121560617606 is an apocalyptic number.

121560617606 is a deficient number, since it is larger than the sum of its proper divisors (60811458514).

121560617606 is a wasteful number, since it uses less digits than its factorization.

121560617606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10383238.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 121560617606 in words is "one hundred twenty-one billion, five hundred sixty million, six hundred seventeen thousand, six hundred six".