655249552851 has 16 divisors (see below), whose sum is σ = 895995642528. Its totient is φ = 425692550400.

The previous prime is 655249552847. The next prime is 655249552873. The reversal of 655249552851 is 158255942556.

It is a happy number.

It is not a de Polignac number, because 655249552851 - 2² = 655249552847 is a prime.

It is a super-3 number, since 3×655249552851³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 655249552791 and 655249552800.

It is not an unprimeable number, because it can be changed into a prime (655249552351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2929320 + ... + 3145061.

It is an arithmetic number, because the mean of its divisors is an integer number (55999727658).

Almost surely, 2^655249552851 is an apocalyptic number.

655249552851 is a deficient number, since it is larger than the sum of its proper divisors (240746089677).

655249552851 is a wasteful number, since it uses less digits than its factorization.

655249552851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075302.

The product of its digits is 21600000, while the sum is 57.

The spelling of 655249552851 in words is "six hundred fifty-five billion, two hundred forty-nine million, five hundred fifty-two thousand, eight hundred fifty-one".