255651147673 has 4 divisors (see below), whose sum is σ = 255675875328. Its totient is φ = 255626420020.

The previous prime is 255651147629. The next prime is 255651147677. The reversal of 255651147673 is 376741156552.

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 a de Polignac number, because none of the positive numbers 2^k-255651147673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255651147673.

It is not an unprimeable number, because it can be changed into a prime (255651147677) 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, 12348313 + ... + 12368998.

It is an arithmetic number, because the mean of its divisors is an integer number (63918968832).

Almost surely, 2^255651147673 is an apocalyptic number.

It is an amenable number.

255651147673 is a deficient number, since it is larger than the sum of its proper divisors (24727655).

255651147673 is a wasteful number, since it uses less digits than its factorization.

255651147673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24727654.

The product of its digits is 5292000, while the sum is 52.

The spelling of 255651147673 in words is "two hundred fifty-five billion, six hundred fifty-one million, one hundred forty-seven thousand, six hundred seventy-three".