7166473661 has 4 divisors (see below), whose sum is σ = 7318951872. Its totient is φ = 7013995452.

The previous prime is 7166473651. The next prime is 7166473667. The reversal of 7166473661 is 1663746617.

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 7166473661 - 2¹⁸ = 7166211517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 152478163 = 7166473661 / (7 + 1 + 6 + 6 + 4 + 7 + 3 + 6 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166473667) 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, 76239035 + ... + 76239128.

It is an arithmetic number, because the mean of its divisors is an integer number (1829737968).

Almost surely, 2^7166473661 is an apocalyptic number.

It is an amenable number.

7166473661 is a deficient number, since it is larger than the sum of its proper divisors (152478211).

7166473661 is a wasteful number, since it uses less digits than its factorization.

7166473661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152478210.

The product of its digits is 762048, while the sum is 47.

The square root of 7166473661 is about 84655.0273817214. The cubic root of 7166473661 is about 1927.9769454445.

The spelling of 7166473661 in words is "seven billion, one hundred sixty-six million, four hundred seventy-three thousand, six hundred sixty-one".