54403260665 has 12 divisors (see below), whose sum is σ = 70692048684. Its totient is φ = 40174714944.

The previous prime is 54403260649. The next prime is 54403260757. The reversal of 54403260665 is 56606230445.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21711727801 + 32691532864 = 147349^2 + 180808^2 .

It is not a de Polignac number, because 54403260665 - 2⁴ = 54403260649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32190434 + ... + 32192123.

It is an arithmetic number, because the mean of its divisors is an integer number (5891004057).

Almost surely, 2^54403260665 is an apocalyptic number.

It is an amenable number.

54403260665 is a deficient number, since it is larger than the sum of its proper divisors (16288788019).

54403260665 is a wasteful number, since it uses less digits than its factorization.

54403260665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64382588 (or 64382575 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 54403260665 in words is "fifty-four billion, four hundred three million, two hundred sixty thousand, six hundred sixty-five".