1161716572 has 6 divisors (see below), whose sum is σ = 2033004008. Its totient is φ = 580858284.

The previous prime is 1161716561. The next prime is 1161716587. The reversal of 1161716572 is 2756171611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145214568 + ... + 145214575.

Almost surely, 2^1161716572 is an apocalyptic number.

It is an amenable number.

1161716572 is a deficient number, since it is larger than the sum of its proper divisors (871287436).

1161716572 is a wasteful number, since it uses less digits than its factorization.

1161716572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290429147 (or 290429145 counting only the distinct ones).

The product of its digits is 17640, while the sum is 37.

The square root of 1161716572 is about 34083.9635605955. The cubic root of 1161716572 is about 1051.2356042185.

The spelling of 1161716572 in words is "one billion, one hundred sixty-one million, seven hundred sixteen thousand, five hundred seventy-two".