16652756121 has 8 divisors (see below), whose sum is σ = 22204280160. Its totient is φ = 11101534752.

The previous prime is 16652756119. The next prime is 16652756137. The reversal of 16652756121 is 12165725661.

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

It is not a de Polignac number, because 16652756121 - 2¹ = 16652756119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16652756221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142941 + ... + 231813.

It is an arithmetic number, because the mean of its divisors is an integer number (2775535020).

Almost surely, 2^16652756121 is an apocalyptic number.

It is an amenable number.

16652756121 is a deficient number, since it is larger than the sum of its proper divisors (5551524039).

16652756121 is an equidigital number, since it uses as much as digits as its factorization.

16652756121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151335.

The product of its digits is 151200, while the sum is 42.

The spelling of 16652756121 in words is "sixteen billion, six hundred fifty-two million, seven hundred fifty-six thousand, one hundred twenty-one".