201165143442635 has 16 divisors (see below), whose sum is σ = 247347006782400. Its totient is φ = 156968163855360.

The previous prime is 201165143442629. The next prime is 201165143442689. The reversal of 201165143442635 is 536244341561102.

It is not a de Polignac number, because 201165143442635 - 2⁴ = 201165143442619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201165143442635.

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, 120347207 + ... + 122007296.

It is an arithmetic number, because the mean of its divisors is an integer number (15459187923900).

Almost surely, 2^{201165143442635} is an apocalyptic number.

201165143442635 is a deficient number, since it is larger than the sum of its proper divisors (46181863339765).

201165143442635 is a wasteful number, since it uses less digits than its factorization.

201165143442635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242358598.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 201165143442635 in words is "two hundred one trillion, one hundred sixty-five billion, one hundred forty-three million, four hundred forty-two thousand, six hundred thirty-five".