1255664304451 has 8 divisors (see below), whose sum is σ = 1298998298880. Its totient is φ = 1212332658432.

The previous prime is 1255664304421. The next prime is 1255664304457. The reversal of 1255664304451 is 1544034665521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255664304451 - 2⁹ = 1255664303939 is a prime.

It is a super-2 number, since 2×1255664304451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255664304457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537246 + ... + 1673308.

It is an arithmetic number, because the mean of its divisors is an integer number (162374787360).

Almost surely, 2^{1255664304451} is an apocalyptic number.

1255664304451 is a deficient number, since it is larger than the sum of its proper divisors (43333994429).

1255664304451 is a wasteful number, since it uses less digits than its factorization.

1255664304451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174205.

The product of its (nonzero) digits is 1728000, while the sum is 46.

Adding to 1255664304451 its reverse (1544034665521), we get a palindrome (2799698969972).

The spelling of 1255664304451 in words is "one trillion, two hundred fifty-five billion, six hundred sixty-four million, three hundred four thousand, four hundred fifty-one".