255671398965 has 8 divisors (see below), whose sum is σ = 409074238368. Its totient is φ = 136358079440.

The previous prime is 255671398951. The next prime is 255671398991. The reversal of 255671398965 is 569893176552.

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

It is not a de Polignac number, because 255671398965 - 2⁸ = 255671398709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255671398896 and 255671398905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8522379951 + ... + 8522379980.

It is an arithmetic number, because the mean of its divisors is an integer number (51134279796).

Almost surely, 2^255671398965 is an apocalyptic number.

It is an amenable number.

255671398965 is a deficient number, since it is larger than the sum of its proper divisors (153402839403).

255671398965 is a wasteful number, since it uses less digits than its factorization.

255671398965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17044759939.

The product of its digits is 122472000, while the sum is 66.

The spelling of 255671398965 in words is "two hundred fifty-five billion, six hundred seventy-one million, three hundred ninety-eight thousand, nine hundred sixty-five".