99276036561 has 45 divisors (see below), whose sum is σ = 160646202849. Its totient is φ = 61070259744.

The previous prime is 99276036547. The next prime is 99276036577. The reversal of 99276036561 is 16563067299.

The square root of 99276036561 is 315081.

It is a perfect power (a square), and thus also a powerful number.

99276036561 is a `hidden beast` number, since 9 + 9 + 2 + 76 + 0 + 3 + 6 + 561 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21234026961 + 78042009600 = 145719^2 + 279360^2 .

It is not a de Polignac number, because 99276036561 - 2⁵ = 99276036529 is a prime.

It is a super-2 number, since 2×99276036561² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99276036498 and 99276036507.

It is not an unprimeable number, because it can be changed into a prime (99276036511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 36863131 + ... + 36865823.

Almost surely, 2^99276036561 is an apocalyptic number.

99276036561 is the 315081-st square number.

99276036561 is the 157541-st centered octagonal number.

It is an amenable number.

99276036561 is a deficient number, since it is larger than the sum of its proper divisors (61370166288).

99276036561 is an frugal number, since it uses more digits than its factorization.

99276036561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 99276036561 in words is "ninety-nine billion, two hundred seventy-six million, thirty-six thousand, five hundred sixty-one".