655261949131 has 8 divisors (see below), whose sum is σ = 655569423360. Its totient is φ = 654954549288.

The previous prime is 655261949107. The next prime is 655261949141. The reversal of 655261949131 is 131949162556.

655261949131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 655261949131 - 2¹¹ = 655261947083 is a prime.

It is a super-2 number, since 2×655261949131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655261949141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24677260 + ... + 24703798.

It is an arithmetic number, because the mean of its divisors is an integer number (81946177920).

Almost surely, 2^655261949131 is an apocalyptic number.

655261949131 is a deficient number, since it is larger than the sum of its proper divisors (307474229).

655261949131 is a wasteful number, since it uses less digits than its factorization.

655261949131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37193.

The product of its digits is 1749600, while the sum is 52.

The spelling of 655261949131 in words is "six hundred fifty-five billion, two hundred sixty-one million, nine hundred forty-nine thousand, one hundred thirty-one".