611610113623 has 4 divisors (see below), whose sum is σ = 612437732920. Its totient is φ = 610782494328.

The previous prime is 611610113617. The next prime is 611610113657. The reversal of 611610113623 is 326311016116.

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 611610113623 - 2⁹ = 611610113111 is a prime.

It is a super-2 number, since 2×611610113623² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611610113693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413808540 + ... + 413810017.

It is an arithmetic number, because the mean of its divisors is an integer number (153109433230).

Almost surely, 2^611610113623 is an apocalyptic number.

611610113623 is a deficient number, since it is larger than the sum of its proper divisors (827619297).

611610113623 is an equidigital number, since it uses as much as digits as its factorization.

611610113623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827619296.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 611610113623 its reverse (326311016116), we get a palindrome (937921129739).

The spelling of 611610113623 in words is "six hundred eleven billion, six hundred ten million, one hundred thirteen thousand, six hundred twenty-three".