1161651510601 has 16 divisors (see below), whose sum is σ = 1194915354048. Its totient is φ = 1128487291200.

The previous prime is 1161651510581. The next prime is 1161651510611. The reversal of 1161651510601 is 1060151561611.

It is a cyclic number.

It is not a de Polignac number, because 1161651510601 - 2¹⁹ = 1161650986313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161651510611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76552851 + ... + 76568023.

It is an arithmetic number, because the mean of its divisors is an integer number (74682209628).

Almost surely, 2^{1161651510601} is an apocalyptic number.

It is an amenable number.

1161651510601 is a deficient number, since it is larger than the sum of its proper divisors (33263843447).

1161651510601 is a wasteful number, since it uses less digits than its factorization.

1161651510601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18312.

The product of its (nonzero) digits is 5400, while the sum is 34.

The spelling of 1161651510601 in words is "one trillion, one hundred sixty-one billion, six hundred fifty-one million, five hundred ten thousand, six hundred one".