655711681253 has 4 divisors (see below), whose sum is σ = 656342781120. Its totient is φ = 655080581388.

The previous prime is 655711681201. The next prime is 655711681271. The reversal of 655711681253 is 352186117556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655711681253 - 2¹⁴ = 655711664869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655711381253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315548375 + ... + 315550452.

It is an arithmetic number, because the mean of its divisors is an integer number (164085695280).

Almost surely, 2^655711681253 is an apocalyptic number.

It is an amenable number.

655711681253 is a deficient number, since it is larger than the sum of its proper divisors (631099867).

655711681253 is a wasteful number, since it uses less digits than its factorization.

655711681253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631099866.

The product of its digits is 1512000, while the sum is 50.

The spelling of 655711681253 in words is "six hundred fifty-five billion, seven hundred eleven million, six hundred eighty-one thousand, two hundred fifty-three".