610636545540 has 144 divisors (see below), whose sum is σ = 2174086317312. Its totient is φ = 135801785088.

The previous prime is 610636545433. The next prime is 610636545551. The reversal of 610636545540 is 45545636016.

610636545540 is a `hidden beast` number, since 6 + 1 + 0 + 6 + 3 + 65 + 45 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6502464 + ... + 6595703.

It is an arithmetic number, because the mean of its divisors is an integer number (15097821648).

Almost surely, 2^610636545540 is an apocalyptic number.

610636545540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

610636545540 is an abundant number, since it is smaller than the sum of its proper divisors (1563449771772).

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

610636545540 is a wasteful number, since it uses less digits than its factorization.

610636545540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098226 (or 13098221 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 610636545540 in words is "six hundred ten billion, six hundred thirty-six million, five hundred forty-five thousand, five hundred forty".