655756531042 has 8 divisors (see below), whose sum is σ = 983644774236. Its totient is φ = 327874939632.

The previous prime is 655756531033. The next prime is 655756531091. The reversal of 655756531042 is 240135657556.

It can be written as a sum of positive squares in 2 ways, for example, as 568170720441 + 87585810601 = 753771^2 + 295949^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408713 + ... + 1815484.

Almost surely, 2^655756531042 is an apocalyptic number.

655756531042 is a deficient number, since it is larger than the sum of its proper divisors (327888243194).

655756531042 is a wasteful number, since it uses less digits than its factorization.

655756531042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325892.

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 655756531042 in words is "six hundred fifty-five billion, seven hundred fifty-six million, five hundred thirty-one thousand, forty-two".