660098517 has 16 divisors (see below), whose sum is σ = 965720448. Its totient is φ = 398548800.

The previous prime is 660098501. The next prime is 660098557. The reversal of 660098517 is 715890066.

It is not a de Polignac number, because 660098517 - 2⁴ = 660098501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660098557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157609 + ... + 161742.

It is an arithmetic number, because the mean of its divisors is an integer number (60357528).

Almost surely, 2^660098517 is an apocalyptic number.

It is an amenable number.

660098517 is a deficient number, since it is larger than the sum of its proper divisors (305621931).

660098517 is a wasteful number, since it uses less digits than its factorization.

660098517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319420.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 660098517 is about 25692.3824702965. The cubic root of 660098517 is about 870.7020875126.

The spelling of 660098517 in words is "six hundred sixty million, ninety-eight thousand, five hundred seventeen".