601161011156 has 12 divisors (see below), whose sum is σ = 1057482712692. Its totient is φ = 299023093248.

The previous prime is 601161011147. The next prime is 601161011203. The reversal of 601161011156 is 651110161106.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66185794756 + 534975216400 = 257266^2 + 731420^2 .

It is a super-2 number, since 2×601161011156² (a number of 24 digits) contains 22 as substring.

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, 389352215 + ... + 389353758.

It is an arithmetic number, because the mean of its divisors is an integer number (88123559391).

Almost surely, 2^601161011156 is an apocalyptic number.

It is an amenable number.

601161011156 is a deficient number, since it is larger than the sum of its proper divisors (456321701536).

601161011156 is a wasteful number, since it uses less digits than its factorization.

601161011156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778706170 (or 778706168 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 601161011156 in words is "six hundred one billion, one hundred sixty-one million, eleven thousand, one hundred fifty-six".