16121613722 has 8 divisors (see below), whose sum is σ = 24523018272. Its totient is φ = 7947274300.

The previous prime is 16121613713. The next prime is 16121613727. The reversal of 16121613722 is 22731612161.

16121613722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×16121613722³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16121613727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56766104 + ... + 56766387.

It is an arithmetic number, because the mean of its divisors is an integer number (3065377284).

Almost surely, 2^16121613722 is an apocalyptic number.

16121613722 is a deficient number, since it is larger than the sum of its proper divisors (8401404550).

16121613722 is a wasteful number, since it uses less digits than its factorization.

16121613722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113532564.

The product of its digits is 6048, while the sum is 32.

The spelling of 16121613722 in words is "sixteen billion, one hundred twenty-one million, six hundred thirteen thousand, seven hundred twenty-two".