20201555473 has 8 divisors (see below), whose sum is σ = 22053392640. Its totient is φ = 18352273680.

The previous prime is 20201555471. The next prime is 20201555483. The reversal of 20201555473 is 37455510202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201555473 - 2¹ = 20201555471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201555471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622290 + ... + 653947.

It is an arithmetic number, because the mean of its divisors is an integer number (2756674080).

Almost surely, 2^20201555473 is an apocalyptic number.

It is an amenable number.

20201555473 is a deficient number, since it is larger than the sum of its proper divisors (1851837167).

20201555473 is a wasteful number, since it uses less digits than its factorization.

20201555473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277687.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 20201555473 in words is "twenty billion, two hundred one million, five hundred fifty-five thousand, four hundred seventy-three".