11145988471077 has 6 divisors (see below), whose sum is σ = 16099761124902. Its totient is φ = 7430658980712.

The previous prime is 11145988471069. The next prime is 11145988471117. The reversal of 11145988471077 is 77017488954111.

11145988471077 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 5 + 98 + 8 + 471 + 0 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5737601018241 + 5408387452836 = 2395329^2 + 2325594^2 .

It is not a de Polignac number, because 11145988471077 - 2³ = 11145988471069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145988471777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619221581718 + ... + 619221581735.

It is an arithmetic number, because the mean of its divisors is an integer number (2683293520817).

Almost surely, 2^{11145988471077} is an apocalyptic number.

It is an amenable number.

11145988471077 is a deficient number, since it is larger than the sum of its proper divisors (4953772653825).

11145988471077 is a wasteful number, since it uses less digits than its factorization.

11145988471077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238443163459 (or 1238443163456 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 63.

The spelling of 11145988471077 in words is "eleven trillion, one hundred forty-five billion, nine hundred eighty-eight million, four hundred seventy-one thousand, seventy-seven".