616414023121 has 4 divisors (see below), whose sum is σ = 663830486452. Its totient is φ = 568997559792.

The previous prime is 616414023083. The next prime is 616414023149. The reversal of 616414023121 is 121320414616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51954820096 + 564459203025 = 227936^2 + 751305^2 .

It is a cyclic number.

It is not a de Polignac number, because 616414023121 - 2⁷ = 616414022993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616414023161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23708231646 + ... + 23708231671.

It is an arithmetic number, because the mean of its divisors is an integer number (165957621613).

Almost surely, 2^616414023121 is an apocalyptic number.

It is an amenable number.

616414023121 is a deficient number, since it is larger than the sum of its proper divisors (47416463331).

616414023121 is a wasteful number, since it uses less digits than its factorization.

616414023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47416463330.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 616414023121 its reverse (121320414616), we get a palindrome (737734437737).

The spelling of 616414023121 in words is "six hundred sixteen billion, four hundred fourteen million, twenty-three thousand, one hundred twenty-one".