654040044036 has 54 divisors (see below), whose sum is σ = 1694575155546. Its totient is φ = 212695929600.

The previous prime is 654040044001. The next prime is 654040044041. The reversal of 654040044036 is 630440040456.

654040044036 is a `hidden beast` number, since 6 + 540 + 40 + 0 + 4 + 40 + 36 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 11246602500 + 642793441536 = 106050^2 + 801744^2 .

It is a super-3 number, since 3×654040044036³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5343345 + ... + 5464376.

It is an arithmetic number, because the mean of its divisors is an integer number (31381021399).

Almost surely, 2^654040044036 is an apocalyptic number.

It is an amenable number.

654040044036 is an abundant number, since it is smaller than the sum of its proper divisors (1040535111510).

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

654040044036 is a wasteful number, since it uses less digits than its factorization.

654040044036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10807813 (or 10807767 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 654040044036 in words is "six hundred fifty-four billion, forty million, forty-four thousand, thirty-six".