201501306601 has 16 divisors (see below), whose sum is σ = 231770605824. Its totient is φ = 171604171584.

The previous prime is 201501306577. The next prime is 201501306607. The reversal of 201501306601 is 106603105102.

It is a cyclic number.

It is not a de Polignac number, because 201501306601 - 2⁹ = 201501306089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201501306607) 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, 1814655 + ... + 1922491.

It is an arithmetic number, because the mean of its divisors is an integer number (14485662864).

Almost surely, 2^201501306601 is an apocalyptic number.

It is an amenable number.

201501306601 is a deficient number, since it is larger than the sum of its proper divisors (30269299223).

201501306601 is a wasteful number, since it uses less digits than its factorization.

201501306601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109560.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 201501306601 in words is "two hundred one billion, five hundred one million, three hundred six thousand, six hundred one".