20145355024 has 40 divisors (see below), whose sum is σ = 39297906648. Its totient is φ = 10004106240.

The previous prime is 20145355007. The next prime is 20145355031. The reversal of 20145355024 is 42055354102.

It can be written as a sum of positive squares in 4 ways, for example, as 5412250624 + 14733104400 = 73568^2 + 121380^2 .

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 7 ways as a sum of consecutive naturals, for example, 2477814 + ... + 2485930.

Almost surely, 2^20145355024 is an apocalyptic number.

It is an amenable number.

20145355024 is a deficient number, since it is larger than the sum of its proper divisors (19152551624).

20145355024 is a wasteful number, since it uses less digits than its factorization.

20145355024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163 (or 9157 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 20145355024 in words is "twenty billion, one hundred forty-five million, three hundred fifty-five thousand, twenty-four".