20001445827770 has 32 divisors (see below), whose sum is σ = 39278294853696. Its totient is φ = 7272747750400.

The previous prime is 20001445827761. The next prime is 20001445827791. The reversal of 20001445827770 is 7772854410002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4723559 + ... + 7893978.

It is an arithmetic number, because the mean of its divisors is an integer number (1227446714178).

Almost surely, 2^{20001445827770} is an apocalyptic number.

20001445827770 is a deficient number, since it is larger than the sum of its proper divisors (19276849025926).

20001445827770 is a wasteful number, since it uses less digits than its factorization.

20001445827770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631966.

The product of its (nonzero) digits is 878080, while the sum is 47.

The spelling of 20001445827770 in words is "twenty trillion, one billion, four hundred forty-five million, eight hundred twenty-seven thousand, seven hundred seventy".