11681554214735 has 16 divisors (see below), whose sum is σ = 14188301172864. Its totient is φ = 9231643838112.

The previous prime is 11681554214711. The next prime is 11681554214767. The reversal of 11681554214735 is 53741245518611.

It is a cyclic number.

It is not a de Polignac number, because 11681554214735 - 2²⁰ = 11681553166159 is a prime.

It is a super-2 number, since 2×11681554214735² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2289944 + ... + 5348546.

It is an arithmetic number, because the mean of its divisors is an integer number (886768823304).

Almost surely, 2^{11681554214735} is an apocalyptic number.

11681554214735 is a deficient number, since it is larger than the sum of its proper divisors (2506746958129).

11681554214735 is an equidigital number, since it uses as much as digits as its factorization.

11681554214735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067894.

The product of its digits is 4032000, while the sum is 53.

The spelling of 11681554214735 in words is "eleven trillion, six hundred eighty-one billion, five hundred fifty-four million, two hundred fourteen thousand, seven hundred thirty-five".