7113112461661 has 4 divisors (see below), whose sum is σ = 7131880568800. Its totient is φ = 7094344354524.

The previous prime is 7113112461589. The next prime is 7113112461701. The reversal of 7113112461661 is 1661642113117.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7113112461661 - 2¹⁵ = 7113112428893 is a prime.

It is a super-2 number, since 2×7113112461661² (a number of 27 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 (7113112761661) 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, 9384053001 + ... + 9384053758.

It is an arithmetic number, because the mean of its divisors is an integer number (1782970142200).

Almost surely, 2^{7113112461661} is an apocalyptic number.

It is an amenable number.

7113112461661 is a deficient number, since it is larger than the sum of its proper divisors (18768107139).

7113112461661 is a wasteful number, since it uses less digits than its factorization.

7113112461661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18768107138.

The product of its digits is 36288, while the sum is 40.

Adding to 7113112461661 its reverse (1661642113117), we get a palindrome (8774754574778).

The spelling of 7113112461661 in words is "seven trillion, one hundred thirteen billion, one hundred twelve million, four hundred sixty-one thousand, six hundred sixty-one".