6455748081 has 16 divisors (see below), whose sum is σ = 8759056320. Its totient is φ = 4228227840.

The previous prime is 6455748053. The next prime is 6455748119. The reversal of 6455748081 is 1808475546.

It is not a de Polignac number, because 6455748081 - 2⁶ = 6455748017 is a prime.

It is a super-2 number, since 2×6455748081² = 83353366570670365122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6455748081.

It is not an unprimeable number, because it can be changed into a prime (6455758081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294021 + ... + 315213.

It is an arithmetic number, because the mean of its divisors is an integer number (547441020).

Almost surely, 2^6455748081 is an apocalyptic number.

It is an amenable number.

6455748081 is a deficient number, since it is larger than the sum of its proper divisors (2303308239).

6455748081 is a wasteful number, since it uses less digits than its factorization.

6455748081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22976.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The square root of 6455748081 is about 80347.6700408917. The cubic root of 6455748081 is about 1862.0107827062.

The spelling of 6455748081 in words is "six billion, four hundred fifty-five million, seven hundred forty-eight thousand, eighty-one".