1516061061 has 6 divisors (see below), whose sum is σ = 2189865990. Its totient is φ = 1010707368.

The previous prime is 1516061047. The next prime is 1516061087. The reversal of 1516061061 is 1601606151.

1516061061 is a `hidden beast` number, since 1 + 51 + 606 + 1 + 0 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1050148836 + 465912225 = 32406^2 + 21585^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1516061061 is a prime.

It is a super-2 number, since 2×1516061061² = 4596882281360891442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516061011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84225606 + ... + 84225623.

It is an arithmetic number, because the mean of its divisors is an integer number (364977665).

Almost surely, 2^1516061061 is an apocalyptic number.

It is an amenable number.

1516061061 is a deficient number, since it is larger than the sum of its proper divisors (673804929).

1516061061 is a wasteful number, since it uses less digits than its factorization.

1516061061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168451235 (or 168451232 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1516061061 is about 38936.6287831908. The cubic root of 1516061061 is about 1148.7853744056.

The spelling of 1516061061 in words is "one billion, five hundred sixteen million, sixty-one thousand, sixty-one".