201615124441 has 16 divisors (see below), whose sum is σ = 215855812800. Its totient is φ = 187738344000.

The previous prime is 201615124409. The next prime is 201615124489. The reversal of 201615124441 is 144421516102.

It is a cyclic number.

It is not a de Polignac number, because 201615124441 - 2⁵ = 201615124409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201615125441) 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, 13782111 + ... + 13796731.

It is an arithmetic number, because the mean of its divisors is an integer number (13490988300).

Almost surely, 2^201615124441 is an apocalyptic number.

It is an amenable number.

201615124441 is a deficient number, since it is larger than the sum of its proper divisors (14240688359).

201615124441 is a wasteful number, since it uses less digits than its factorization.

201615124441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27000.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 201615124441 in words is "two hundred one billion, six hundred fifteen million, one hundred twenty-four thousand, four hundred forty-one".