454543456765656 has 64 divisors (see below), whose sum is σ = 1178349016320000. Its totient is φ = 145940707611776.

The previous prime is 454543456765633. The next prime is 454543456765679. The reversal of 454543456765656 is 656567654345454.

It is a happy number.

454543456765656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (454543456765633) and next prime (454543456765679).

It is a super-2 number, since 2×454543456765656² (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, 779039736 + ... + 779622983.

It is an arithmetic number, because the mean of its divisors is an integer number (18411703380000).

Almost surely, 2^{454543456765656} is an apocalyptic number.

It is an amenable number.

454543456765656 is an abundant number, since it is smaller than the sum of its proper divisors (723805559554344).

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

454543456765656 is a wasteful number, since it uses less digits than its factorization.

454543456765656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558663176 (or 1558663172 counting only the distinct ones).

The product of its digits is 21772800000, while the sum is 75.

The spelling of 454543456765656 in words is "four hundred fifty-four trillion, five hundred forty-three billion, four hundred fifty-six million, seven hundred sixty-five thousand, six hundred fifty-six".