11161345477776 has 80 divisors (see below), whose sum is σ = 31149390103104. Its totient is φ = 3423426458112.

The previous prime is 11161345477769. The next prime is 11161345477831. The reversal of 11161345477776 is 67777454316111.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

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, 28014766 + ... + 28410381.

Almost surely, 2^{11161345477776} is an apocalyptic number.

11161345477776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11161345477776 is an abundant number, since it is smaller than the sum of its proper divisors (19988044625328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11161345477776 is a wasteful number, since it uses less digits than its factorization.

11161345477776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56425488 (or 56425482 counting only the distinct ones).

The product of its digits is 20744640, while the sum is 60.

The spelling of 11161345477776 in words is "eleven trillion, one hundred sixty-one billion, three hundred forty-five million, four hundred seventy-seven thousand, seven hundred seventy-six".