11870604816261 has 16 divisors (see below), whose sum is σ = 16033231119360. Its totient is φ = 7810925157360.

The previous prime is 11870604816253. The next prime is 11870604816281. The reversal of 11870604816261 is 16261840607811.

It is not a de Polignac number, because 11870604816261 - 2³ = 11870604816253 is a prime.

It is a super-2 number, since 2×11870604816261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11870604816221) 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, 7749835 + ... + 9154296.

It is an arithmetic number, because the mean of its divisors is an integer number (1002076944960).

Almost surely, 2^{11870604816261} is an apocalyptic number.

It is an amenable number.

11870604816261 is a deficient number, since it is larger than the sum of its proper divisors (4162626303099).

11870604816261 is a wasteful number, since it uses less digits than its factorization.

11870604816261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16907176.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 11870604816261 in words is "eleven trillion, eight hundred seventy billion, six hundred four million, eight hundred sixteen thousand, two hundred sixty-one".