655363261566123 has 32 divisors (see below), whose sum is σ = 994710170603520. Its totient is φ = 379917439191840.

The previous prime is 655363261566113. The next prime is 655363261566133. The reversal of 655363261566123 is 321665162363556.

It is an interprime number because it is at equal distance from previous prime (655363261566113) and next prime (655363261566133).

It is not a de Polignac number, because 655363261566123 - 2⁶ = 655363261566059 is a prime.

It is a super-2 number, since 2×655363261566123² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655363261566113) 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 31 ways as a sum of consecutive naturals, for example, 85301940 + ... + 92666862.

It is an arithmetic number, because the mean of its divisors is an integer number (31084692831360).

Almost surely, 2^{655363261566123} is an apocalyptic number.

655363261566123 is a deficient number, since it is larger than the sum of its proper divisors (339346909037397).

655363261566123 is a wasteful number, since it uses less digits than its factorization.

655363261566123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482199.

The product of its digits is 104976000, while the sum is 60.

The spelling of 655363261566123 in words is "six hundred fifty-five trillion, three hundred sixty-three billion, two hundred sixty-one million, five hundred sixty-six thousand, one hundred twenty-three".