40045120550 has 48 divisors (see below), whose sum is σ = 75114321840. Its totient is φ = 15882754560.

The previous prime is 40045120529. The next prime is 40045120601. The reversal of 40045120550 is 5502154004.

It is a super-2 number, since 2×40045120550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6977282 + ... + 6983018.

It is an arithmetic number, because the mean of its divisors is an integer number (1564881705).

Almost surely, 2^40045120550 is an apocalyptic number.

40045120550 is a deficient number, since it is larger than the sum of its proper divisors (35069201290).

40045120550 is a wasteful number, since it uses less digits than its factorization.

40045120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905 (or 6900 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 40045120550 its reverse (5502154004), we get a palindrome (45547274554).

The spelling of 40045120550 in words is "forty billion, forty-five million, one hundred twenty thousand, five hundred fifty".