454565654545656 has 16 divisors (see below), whose sum is σ = 1136414136364200. Its totient is φ = 151521884848544.

The previous prime is 454565654545591. The next prime is 454565654545657. The reversal of 454565654545656 is 656545456565454.

It is a happy number.

454565654545656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454565654545657) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9470117803011 + ... + 9470117803058.

Almost surely, 2^{454565654545656} is an apocalyptic number.

It is an amenable number.

454565654545656 is an abundant number, since it is smaller than the sum of its proper divisors (681848481818544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454565654545656 is a wasteful number, since it uses less digits than its factorization.

454565654545656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18940235606078 (or 18940235606074 counting only the distinct ones).

The product of its digits is 25920000000, while the sum is 75.

The spelling of 454565654545656 in words is "four hundred fifty-four trillion, five hundred sixty-five billion, six hundred fifty-four million, five hundred forty-five thousand, six hundred fifty-six".