655651016 has 8 divisors (see below), whose sum is σ = 1229345670. Its totient is φ = 327825504.

The previous prime is 655651001. The next prime is 655651027. The reversal of 655651016 is 610156556.

It can be written as a sum of positive squares in only one way, i.e., 459930916 + 195720100 = 21446^2 + 13990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40978181 + ... + 40978196.

Almost surely, 2^655651016 is an apocalyptic number.

It is an amenable number.

655651016 is a deficient number, since it is larger than the sum of its proper divisors (573694654).

655651016 is a wasteful number, since it uses less digits than its factorization.

655651016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81956383 (or 81956379 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 655651016 is about 25605.6832753981. The cubic root of 655651016 is about 868.7421890780.

The spelling of 655651016 in words is "six hundred fifty-five million, six hundred fifty-one thousand, sixteen".