1602561115 has 16 divisors (see below), whose sum is σ = 1966468608. Its totient is φ = 1253187936.

The previous prime is 1602561113. The next prime is 1602561119. The reversal of 1602561115 is 5111652061.

1602561115 = T₃₆₄ + T₃₆₅ + ... + T₂₁₂₉.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1602561115 - 2¹ = 1602561113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1602561113) 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, 203644 + ... + 211366.

It is an arithmetic number, because the mean of its divisors is an integer number (122904288).

Almost surely, 2^1602561115 is an apocalyptic number.

1602561115 is a deficient number, since it is larger than the sum of its proper divisors (363907493).

1602561115 is an equidigital number, since it uses as much as digits as its factorization.

1602561115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1602561115 is about 40032.0011365907. The cubic root of 1602561115 is about 1170.2308247436.

The spelling of 1602561115 in words is "one billion, six hundred two million, five hundred sixty-one thousand, one hundred fifteen".