1601025065 has 16 divisors (see below), whose sum is σ = 2047731840. Its totient is φ = 1197484800.

The previous prime is 1601025053. The next prime is 1601025067. The reversal of 1601025065 is 5605201061.

It is not a de Polignac number, because 1601025065 - 2⁶ = 1601025001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1601025067) 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, 49535 + ... + 75204.

It is an arithmetic number, because the mean of its divisors is an integer number (127983240).

Almost surely, 2^1601025065 is an apocalyptic number.

It is an amenable number.

1601025065 is a deficient number, since it is larger than the sum of its proper divisors (446706775).

1601025065 is a wasteful number, since it uses less digits than its factorization.

1601025065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124912.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1601025065 is about 40012.8112608949. The cubic root of 1601025065 is about 1169.8568176501.

The spelling of 1601025065 in words is "one billion, six hundred one million, twenty-five thousand, sixty-five".