201056075477 has 4 divisors (see below), whose sum is σ = 209797644000. Its totient is φ = 192314506956.

The previous prime is 201056075453. The next prime is 201056075489. The reversal of 201056075477 is 774570650102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774570650102 = 2 ⋅387285325051.

It is a cyclic number.

It is not a de Polignac number, because 201056075477 - 2²⁸ = 200787640021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201056075177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4370784227 + ... + 4370784272.

It is an arithmetic number, because the mean of its divisors is an integer number (52449411000).

Almost surely, 2^201056075477 is an apocalyptic number.

It is an amenable number.

201056075477 is a deficient number, since it is larger than the sum of its proper divisors (8741568523).

201056075477 is an equidigital number, since it uses as much as digits as its factorization.

201056075477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8741568522.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 201056075477 in words is "two hundred one billion, fifty-six million, seventy-five thousand, four hundred seventy-seven".