121662160501 has 4 divisors (see below), whose sum is σ = 139042469152. Its totient is φ = 104281851852.

The previous prime is 121662160453. The next prime is 121662160511. The reversal of 121662160501 is 105061266121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121662160501 - 2¹³ = 121662152309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121662160511) 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, 8690154315 + ... + 8690154328.

It is an arithmetic number, because the mean of its divisors is an integer number (34760617288).

Almost surely, 2^121662160501 is an apocalyptic number.

It is an amenable number.

121662160501 is a deficient number, since it is larger than the sum of its proper divisors (17380308651).

121662160501 is an equidigital number, since it uses as much as digits as its factorization.

121662160501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17380308650.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 121662160501 in words is "one hundred twenty-one billion, six hundred sixty-two million, one hundred sixty thousand, five hundred one".