455778144667 has 4 divisors (see below), whose sum is σ = 455812178976. Its totient is φ = 455744110360.

The previous prime is 455778144631. The next prime is 455778144677. The reversal of 455778144667 is 766441877554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 455778144667 - 2¹¹ = 455778142619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455778144599 and 455778144608.

It is not an unprimeable number, because it can be changed into a prime (455778144677) 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, 16997059 + ... + 17023852.

It is an arithmetic number, because the mean of its divisors is an integer number (113953044744).

Almost surely, 2^455778144667 is an apocalyptic number.

455778144667 is a deficient number, since it is larger than the sum of its proper divisors (34034309).

455778144667 is a wasteful number, since it uses less digits than its factorization.

455778144667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34034308.

The product of its digits is 158054400, while the sum is 64.

The spelling of 455778144667 in words is "four hundred fifty-five billion, seven hundred seventy-eight million, one hundred forty-four thousand, six hundred sixty-seven".