611641099 has 4 divisors (see below), whose sum is σ = 613308064. Its totient is φ = 609974136.

The previous prime is 611641049. The next prime is 611641109. The reversal of 611641099 is 990146116.

611641099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 611641099 - 2⁷ = 611640971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611641049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832932 + ... + 833665.

It is an arithmetic number, because the mean of its divisors is an integer number (153327016).

Almost surely, 2^611641099 is an apocalyptic number.

611641099 is a deficient number, since it is larger than the sum of its proper divisors (1666965).

611641099 is a wasteful number, since it uses less digits than its factorization.

611641099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666964.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 611641099 is about 24731.3788333768. The cubic root of 611641099 is about 848.8524764220.

The spelling of 611641099 in words is "six hundred eleven million, six hundred forty-one thousand, ninety-nine".