660616373 has 8 divisors (see below), whose sum is σ = 689767488. Its totient is φ = 631501024.

The previous prime is 660616361. The next prime is 660616381. The reversal of 660616373 is 373616066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660616373 - 2⁴ = 660616357 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 (660616273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33065 + ... + 49137.

It is an arithmetic number, because the mean of its divisors is an integer number (86220936).

Almost surely, 2^660616373 is an apocalyptic number.

It is an amenable number.

660616373 is a deficient number, since it is larger than the sum of its proper divisors (29151115).

660616373 is a wasteful number, since it uses less digits than its factorization.

660616373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17883.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 660616373 is about 25702.4585010851. The cubic root of 660616373 is about 870.9297204230.

The spelling of 660616373 in words is "six hundred sixty million, six hundred sixteen thousand, three hundred seventy-three".