454545654565656 has 64 divisors (see below), whose sum is σ = 1141532196480000. Its totient is φ = 150827627000576.

The previous prime is 454545654565633. The next prime is 454545654565687. The reversal of 454545654565656 is 656565456545454.

It is a happy number.

454545654565656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×454545654565656² (a number of 30 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41456016 + ... + 51261023.

It is an arithmetic number, because the mean of its divisors is an integer number (17836440570000).

Almost surely, 2^{454545654565656} is an apocalyptic number.

It is an amenable number.

454545654565656 is an abundant number, since it is smaller than the sum of its proper divisors (686986541914344).

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

454545654565656 is a wasteful number, since it uses less digits than its factorization.

454545654565656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92717976 (or 92717972 counting only the distinct ones).

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

The spelling of 454545654565656 in words is "four hundred fifty-four trillion, five hundred forty-five billion, six hundred fifty-four million, five hundred sixty-five thousand, six hundred fifty-six".