1015611601606 has 32 divisors (see below), whose sum is σ = 1844380634112. Its totient is φ = 409454559360.

The previous prime is 1015611601573. The next prime is 1015611601621. The reversal of 1015611601606 is 6061061165101.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 582366 + ... + 1539601.

It is an arithmetic number, because the mean of its divisors is an integer number (57636894816).

Almost surely, 2^{1015611601606} is an apocalyptic number.

1015611601606 is a deficient number, since it is larger than the sum of its proper divisors (828769032506).

1015611601606 is a wasteful number, since it uses less digits than its factorization.

1015611601606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124004.

The product of its (nonzero) digits is 6480, while the sum is 34.

Adding to 1015611601606 its reverse (6061061165101), we get a palindrome (7076672766707).

The spelling of 1015611601606 in words is "one trillion, fifteen billion, six hundred eleven million, six hundred one thousand, six hundred six".