655061651506 has 8 divisors (see below), whose sum is σ = 1001131958124. Its totient is φ = 321350998800.

The previous prime is 655061651479. The next prime is 655061651599. The reversal of 655061651506 is 605156160556.

It can be written as a sum of positive squares in 2 ways, for example, as 625926234025 + 29135417481 = 791155^2 + 170691^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089913345 + ... + 3089913556.

Almost surely, 2^655061651506 is an apocalyptic number.

655061651506 is a deficient number, since it is larger than the sum of its proper divisors (346070306618).

655061651506 is a wasteful number, since it uses less digits than its factorization.

655061651506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179826956.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 655061651506 in words is "six hundred fifty-five billion, sixty-one million, six hundred fifty-one thousand, five hundred six".