20201845701 has 16 divisors (see below), whose sum is σ = 27868815360. Its totient is φ = 13001526720.

The previous prime is 20201845669. The next prime is 20201845711. The reversal of 20201845701 is 10754810202.

It is not a de Polignac number, because 20201845701 - 2⁵ = 20201845669 is a prime.

It is a super-2 number, since 2×20201845701² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201845711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760636 + ... + 786746.

It is an arithmetic number, because the mean of its divisors is an integer number (1741800960).

Almost surely, 2^20201845701 is an apocalyptic number.

It is an amenable number.

20201845701 is a deficient number, since it is larger than the sum of its proper divisors (7666969659).

20201845701 is a wasteful number, since it uses less digits than its factorization.

20201845701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35036.

The product of its (nonzero) digits is 4480, while the sum is 30.

It can be divided in two parts, 20201845 and 701, that added together give a triangular number (20202546 = T₆₃₅₆).

The spelling of 20201845701 in words is "twenty billion, two hundred one million, eight hundred forty-five thousand, seven hundred one".