1061511516616 has 32 divisors (see below), whose sum is σ = 2014683161400. Its totient is φ = 524286950400.

The previous prime is 1061511516581. The next prime is 1061511516617. The reversal of 1061511516616 is 6166151151601.

It can be written as a sum of positive squares in 4 ways, for example, as 1061497484100 + 14032516 = 1030290^2 + 3746^2 .

It is a super-2 number, since 2×1061511516616² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061511516617) 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, 1167171 + ... + 1866898.

Almost surely, 2^{1061511516616} is an apocalyptic number.

It is an amenable number.

1061511516616 is a deficient number, since it is larger than the sum of its proper divisors (953171644784).

1061511516616 is a wasteful number, since it uses less digits than its factorization.

1061511516616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034609 (or 3034605 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 1061511516616 in words is "one trillion, sixty-one billion, five hundred eleven million, five hundred sixteen thousand, six hundred sixteen".