655146261 has 24 divisors (see below), whose sum is σ = 1179831744. Its totient is φ = 340335360.

The previous prime is 655146259. The next prime is 655146287. The reversal of 655146261 is 162641556.

655146261 is a `hidden beast` number, since 6 + 551 + 46 + 2 + 61 = 666.

655146261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 655146261 - 2¹ = 655146259 is a prime.

It is a super-3 number, since 3×655146261³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655146211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471996 + ... + 473381.

It is an arithmetic number, because the mean of its divisors is an integer number (49159656).

Almost surely, 2^655146261 is an apocalyptic number.

It is an amenable number.

655146261 is a deficient number, since it is larger than the sum of its proper divisors (524685483).

655146261 is a wasteful number, since it uses less digits than its factorization.

655146261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945401 (or 945398 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 655146261 is about 25595.8250697257. The cubic root of 655146261 is about 868.5191972076.

The spelling of 655146261 in words is "six hundred fifty-five million, one hundred forty-six thousand, two hundred sixty-one".