11663074477 has 4 divisors (see below), whose sum is σ = 11883132540. Its totient is φ = 11443016416.

The previous prime is 11663074469. The next prime is 11663074481. The reversal of 11663074477 is 77447036611.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4423447081 + 7239627396 = 66509^2 + 85086^2 .

It is a cyclic number.

It is not a de Polignac number, because 11663074477 - 2³ = 11663074469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11673074477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110028952 + ... + 110029057.

It is an arithmetic number, because the mean of its divisors is an integer number (2970783135).

Almost surely, 2^11663074477 is an apocalyptic number.

It is an amenable number.

11663074477 is a deficient number, since it is larger than the sum of its proper divisors (220058063).

11663074477 is an equidigital number, since it uses as much as digits as its factorization.

11663074477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220058062.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 11663074477 in words is "eleven billion, six hundred sixty-three million, seventy-four thousand, four hundred seventy-seven".