97561600011 has 16 divisors (see below), whose sum is σ = 145505748000. Its totient is φ = 64604546784.

The previous prime is 97561600009. The next prime is 97561600063. The reversal of 97561600011 is 11000616579.

It is a happy number.

97561600011 is a `hidden beast` number, since 97 + 561 + 6 + 0 + 0 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 97561600011 - 2¹ = 97561600009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97561600001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12121456 + ... + 12129501.

It is an arithmetic number, because the mean of its divisors is an integer number (9094109250).

Almost surely, 2^97561600011 is an apocalyptic number.

97561600011 is a deficient number, since it is larger than the sum of its proper divisors (47944147989).

97561600011 is a wasteful number, since it uses less digits than its factorization.

97561600011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24251115 (or 24251109 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The spelling of 97561600011 in words is "ninety-seven billion, five hundred sixty-one million, six hundred thousand, eleven".