1061616121 has 8 divisors (see below), whose sum is σ = 1091100384. Its totient is φ = 1032349920.

The previous prime is 1061616113. The next prime is 1061616133. The reversal of 1061616121 is 1216161601.

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

It is a cyclic number.

It is not a de Polignac number, because 1061616121 - 2³ = 1061616113 is a prime.

It is a super-2 number, since 2×1061616121² = 2254057576734173282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061616181) 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, 44620 + ... + 64141.

It is an arithmetic number, because the mean of its divisors is an integer number (136387548).

Almost surely, 2^1061616121 is an apocalyptic number.

It is an amenable number.

1061616121 is a deficient number, since it is larger than the sum of its proper divisors (29484263).

1061616121 is a wasteful number, since it uses less digits than its factorization.

1061616121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109031.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1061616121 is about 32582.4511201966. The cubic root of 1061616121 is about 1020.1307409626.

Adding to 1061616121 its reverse (1216161601), we get a palindrome (2277777722).

The spelling of 1061616121 in words is "one billion, sixty-one million, six hundred sixteen thousand, one hundred twenty-one".