65280667551 has 16 divisors (see below), whose sum is σ = 95646797568. Its totient is φ = 39275249600.

The previous prime is 65280667547. The next prime is 65280667589. The reversal of 65280667551 is 15576608256.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 65280667551 - 2² = 65280667547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65280667494 and 65280667503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65280667541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7215195 + ... + 7224236.

It is an arithmetic number, because the mean of its divisors is an integer number (5977924848).

Almost surely, 2^65280667551 is an apocalyptic number.

65280667551 is a deficient number, since it is larger than the sum of its proper divisors (30366130017).

65280667551 is a wasteful number, since it uses less digits than its factorization.

65280667551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14439582.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 65280667551 in words is "sixty-five billion, two hundred eighty million, six hundred sixty-seven thousand, five hundred fifty-one".