6664655454 has 16 divisors (see below), whose sum is σ = 13434267648. Its totient is φ = 2204059032.

The previous prime is 6664655447. The next prime is 6664655461. The reversal of 6664655454 is 4545564666.

It is an interprime number because it is at equal distance from previous prime (6664655447) and next prime (6664655461).

It is a super-2 number, since 2×6664655454² = 88835264641063892232, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6664655397 and 6664655406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4372372 + ... + 4373895.

It is an arithmetic number, because the mean of its divisors is an integer number (839641728).

Almost surely, 2^6664655454 is an apocalyptic number.

6664655454 is an abundant number, since it is smaller than the sum of its proper divisors (6769612194).

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

6664655454 is a wasteful number, since it uses less digits than its factorization.

6664655454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8746399.

The product of its digits is 10368000, while the sum is 51.

The square root of 6664655454 is about 81637.3410517516. The cubic root of 6664655454 is about 1881.8827763684.

The spelling of 6664655454 in words is "six billion, six hundred sixty-four million, six hundred fifty-five thousand, four hundred fifty-four".