1165616436 has 12 divisors (see below), whose sum is σ = 2719771712. Its totient is φ = 388538808.

The previous prime is 1165616411. The next prime is 1165616447. The reversal of 1165616436 is 6346165611.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1165616394 and 1165616403.

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, 48567340 + ... + 48567363.

Almost surely, 2^1165616436 is an apocalyptic number.

It is an amenable number.

1165616436 is an abundant number, since it is smaller than the sum of its proper divisors (1554155276).

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

1165616436 is a wasteful number, since it uses less digits than its factorization.

1165616436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97134710 (or 97134708 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 1165616436 is about 34141.1252890118. The cubic root of 1165616436 is about 1052.4106174154.

The spelling of 1165616436 in words is "one billion, one hundred sixty-five million, six hundred sixteen thousand, four hundred thirty-six".