1601150115601 has 8 divisors (see below), whose sum is σ = 1607552045000. Its totient is φ = 1594756380672.

The previous prime is 1601150115583. The next prime is 1601150115619. The reversal of 1601150115601 is 1065110511061.

It is an interprime number because it is at equal distance from previous prime (1601150115583) and next prime (1601150115619).

It can be written as a sum of positive squares in 4 ways, for example, as 29948033025 + 1571202082576 = 173055^2 + 1253476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1601150115601 - 2⁷ = 1601150115473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601150115601.

It is not an unprimeable number, because it can be changed into a prime (1601150115641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656900 + ... + 2438773.

It is an arithmetic number, because the mean of its divisors is an integer number (200944005625).

Almost surely, 2^{1601150115601} is an apocalyptic number.

It is an amenable number.

1601150115601 is a deficient number, since it is larger than the sum of its proper divisors (6401929399).

1601150115601 is a wasteful number, since it uses less digits than its factorization.

1601150115601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097235.

The product of its (nonzero) digits is 900, while the sum is 28.

Adding to 1601150115601 its reverse (1065110511061), we get a palindrome (2666260626662).

The spelling of 1601150115601 in words is "one trillion, six hundred one billion, one hundred fifty million, one hundred fifteen thousand, six hundred one".