201975205477530 has 32 divisors (see below), whose sum is σ = 485566286192064. Its totient is φ = 53768300011136.

The previous prime is 201975205477517. The next prime is 201975205477541. The reversal of 201975205477530 is 35774502579102.

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, 5734656027 + ... + 5734691246.

It is an arithmetic number, because the mean of its divisors is an integer number (15173946443502).

Almost surely, 2^{201975205477530} is an apocalyptic number.

201975205477530 is an abundant number, since it is smaller than the sum of its proper divisors (283591080714534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201975205477530 is a wasteful number, since it uses less digits than its factorization.

201975205477530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11469347870.

The product of its (nonzero) digits is 18522000, while the sum is 57.

The spelling of 201975205477530 in words is "two hundred one trillion, nine hundred seventy-five billion, two hundred five million, four hundred seventy-seven thousand, five hundred thirty".