655651086 has 32 divisors (see below), whose sum is σ = 1326626208. Its totient is φ = 216007680.

The previous prime is 655651027. The next prime is 655651093. The reversal of 655651086 is 680156556.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284290 + ... + 286586.

It is an arithmetic number, because the mean of its divisors is an integer number (41457069).

Almost surely, 2^655651086 is an apocalyptic number.

655651086 is an abundant number, since it is smaller than the sum of its proper divisors (670975122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655651086 is a wasteful number, since it uses less digits than its factorization.

655651086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 655651086 is about 25605.6846422821. The cubic root of 655651086 is about 868.7422199949.

The spelling of 655651086 in words is "six hundred fifty-five million, six hundred fifty-one thousand, eighty-six".