655469136 has 240 divisors, whose sum is σ = 2298067200. Its totient is φ = 170053632.

The previous prime is 655469131. The next prime is 655469137. The reversal of 655469136 is 631964556.

655469136 is a `hidden beast` number, since 6 + 55 + 469 + 136 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 655469091 and 655469100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655469131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496285 + ... + 497603.

It is an arithmetic number, because the mean of its divisors is an integer number (9575280).

Almost surely, 2^655469136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655469136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149033600).

655469136 is an abundant number, since it is smaller than the sum of its proper divisors (1642598064).

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

655469136 is a wasteful number, since it uses less digits than its factorization.

655469136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1377 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 655469136 is about 25602.1314737660. The cubic root of 655469136 is about 868.6618508908.

The spelling of 655469136 in words is "six hundred fifty-five million, four hundred sixty-nine thousand, one hundred thirty-six".