660225367 has 4 divisors (see below), whose sum is σ = 660276760. Its totient is φ = 660173976.

The previous prime is 660225353. The next prime is 660225443. The reversal of 660225367 is 763522066.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 763522066 = 2 ⋅381761033.

It is a cyclic number.

It is not a de Polignac number, because 660225367 - 2⁷ = 660225239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660225767) 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, 12484 + ... + 38422.

It is an arithmetic number, because the mean of its divisors is an integer number (165069190).

Almost surely, 2^660225367 is an apocalyptic number.

660225367 is a deficient number, since it is larger than the sum of its proper divisors (51393).

660225367 is a wasteful number, since it uses less digits than its factorization.

660225367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51392.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 660225367 is about 25694.8509822493. The cubic root of 660225367 is about 870.7578577160.

The spelling of 660225367 in words is "six hundred sixty million, two hundred twenty-five thousand, three hundred sixty-seven".