1165566764110 has 48 divisors (see below), whose sum is σ = 2547077429664. Its totient is φ = 376115655168.

The previous prime is 1165566764077. The next prime is 1165566764111. The reversal of 1165566764110 is 114676655611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165566764111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28787649 + ... + 28828108.

It is an arithmetic number, because the mean of its divisors is an integer number (53064113118).

Almost surely, 2^{1165566764110} is an apocalyptic number.

1165566764110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165566764110 is an abundant number, since it is smaller than the sum of its proper divisors (1381510665554).

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

1165566764110 is a wasteful number, since it uses less digits than its factorization.

1165566764110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57615805 (or 57615788 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 1165566764110 in words is "one trillion, one hundred sixty-five billion, five hundred sixty-six million, seven hundred sixty-four thousand, one hundred ten".