1601064647 has 16 divisors (see below), whose sum is σ = 1988969472. Its totient is φ = 1254929760.

The previous prime is 1601064643. The next prime is 1601064653. The reversal of 1601064647 is 7464601061.

It is not a de Polignac number, because 1601064647 - 2² = 1601064643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601064643) 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, 72479 + ... + 91952.

It is an arithmetic number, because the mean of its divisors is an integer number (124310592).

Almost surely, 2^1601064647 is an apocalyptic number.

1601064647 is a deficient number, since it is larger than the sum of its proper divisors (387904825).

1601064647 is a wasteful number, since it uses less digits than its factorization.

1601064647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164558.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1601064647 is about 40013.3058744213. The cubic root of 1601064647 is about 1169.8664583260.

The spelling of 1601064647 in words is "one billion, six hundred one million, sixty-four thousand, six hundred forty-seven".