3106161561 has 8 divisors (see below), whose sum is σ = 4156945920. Its totient is φ = 2063075792.

The previous prime is 3106161547. The next prime is 3106161563. The reversal of 3106161561 is 1651616013.

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 3106161561 - 2⁹ = 3106161049 is a prime.

It is a super-3 number, since 3×3106161561³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3106161563) 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, 1923705 + ... + 1925318.

It is an arithmetic number, because the mean of its divisors is an integer number (519618240).

Almost surely, 2^3106161561 is an apocalyptic number.

It is an amenable number.

3106161561 is a deficient number, since it is larger than the sum of its proper divisors (1050784359).

3106161561 is a wasteful number, since it uses less digits than its factorization.

3106161561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849295.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 3106161561 is about 55732.9486121092. The cubic root of 3106161561 is about 1459.0651363339.

Adding to 3106161561 its reverse (1651616013), we get a palindrome (4757777574).

The spelling of 3106161561 in words is "three billion, one hundred six million, one hundred sixty-one thousand, five hundred sixty-one".