201215611045 has 16 divisors (see below), whose sum is σ = 247128944832. Its totient is φ = 157194011520.

The previous prime is 201215611033. The next prime is 201215611049. The reversal of 201215611045 is 540116512102.

It is not a de Polignac number, because 201215611045 - 2⁵ = 201215611013 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 (201215611049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887985 + ... + 1091305.

It is an arithmetic number, because the mean of its divisors is an integer number (15445559052).

Almost surely, 2^201215611045 is an apocalyptic number.

It is an amenable number.

201215611045 is a deficient number, since it is larger than the sum of its proper divisors (45913333787).

201215611045 is a wasteful number, since it uses less digits than its factorization.

201215611045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207972.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 201215611045 in words is "two hundred one billion, two hundred fifteen million, six hundred eleven thousand, forty-five".