611116872 has 32 divisors (see below), whose sum is σ = 1548725280. Its totient is φ = 200914560.

The previous prime is 611116843. The next prime is 611116879. The reversal of 611116872 is 278611116.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (611116879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172654 + ... + 176157.

It is an arithmetic number, because the mean of its divisors is an integer number (48397665).

Almost surely, 2^611116872 is an apocalyptic number.

It is an amenable number.

611116872 is an abundant number, since it is smaller than the sum of its proper divisors (937608408).

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

611116872 is a wasteful number, since it uses less digits than its factorization.

611116872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348893 (or 348889 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The square root of 611116872 is about 24720.7781430925. The cubic root of 611116872 is about 848.6098948493.

Adding to 611116872 its reverse (278611116), we get a palindrome (889727988).

The spelling of 611116872 in words is "six hundred eleven million, one hundred sixteen thousand, eight hundred seventy-two".