660490526 has 8 divisors (see below), whose sum is σ = 1022695104. Its totient is φ = 319592160.

The previous prime is 660490513. The next prime is 660490529. The reversal of 660490526 is 625094066.

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

It is a self number, because there is not a number n which added to its sum of digits gives 660490526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660490529) 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, 5326475 + ... + 5326598.

It is an arithmetic number, because the mean of its divisors is an integer number (127836888).

Almost surely, 2^660490526 is an apocalyptic number.

660490526 is a deficient number, since it is larger than the sum of its proper divisors (362204578).

660490526 is a wasteful number, since it uses less digits than its factorization.

660490526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10653106.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 660490526 is about 25700.0102334610. The cubic root of 660490526 is about 870.8744130577.

The spelling of 660490526 in words is "six hundred sixty million, four hundred ninety thousand, five hundred twenty-six".