11554164645605 has 4 divisors (see below), whose sum is σ = 13864997574732. Its totient is φ = 9243331716480.

The previous prime is 11554164645581. The next prime is 11554164645629. The reversal of 11554164645605 is 50654646145511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11554164645581) and next prime (11554164645629).

It can be written as a sum of positive squares in 2 ways, for example, as 1280658882244 + 10273505763361 = 1131662^2 + 3205231^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11554164645605 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1155416464556 + ... + 1155416464565.

It is an arithmetic number, because the mean of its divisors is an integer number (3466249393683).

Almost surely, 2^{11554164645605} is an apocalyptic number.

It is an amenable number.

11554164645605 is a deficient number, since it is larger than the sum of its proper divisors (2310832929127).

11554164645605 is an equidigital number, since it uses as much as digits as its factorization.

11554164645605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310832929126.

The product of its (nonzero) digits is 8640000, while the sum is 53.

The spelling of 11554164645605 in words is "eleven trillion, five hundred fifty-four billion, one hundred sixty-four million, six hundred forty-five thousand, six hundred five".