611440453331 has 16 divisors (see below), whose sum is σ = 625063686624. Its totient is φ = 597895893504.

The previous prime is 611440453301. The next prime is 611440453357. The reversal of 611440453331 is 133354044116.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611440453331 is a prime.

It is a super-2 number, since 2×611440453331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 611440453291 and 611440453300.

It is not an unprimeable number, because it can be changed into a prime (611440453301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65062925 + ... + 65072321.

It is an arithmetic number, because the mean of its divisors is an integer number (39066480414).

Almost surely, 2^611440453331 is an apocalyptic number.

611440453331 is a deficient number, since it is larger than the sum of its proper divisors (13623233293).

611440453331 is a wasteful number, since it uses less digits than its factorization.

611440453331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13430.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 611440453331 its reverse (133354044116), we get a palindrome (744794497447).

The spelling of 611440453331 in words is "six hundred eleven billion, four hundred forty million, four hundred fifty-three thousand, three hundred thirty-one".