1601257863 has 8 divisors (see below), whose sum is σ = 2260599408. Its totient is φ = 1004710784.

The previous prime is 1601257837. The next prime is 1601257877. The reversal of 1601257863 is 3687521061.

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 1601257863 - 2²⁹ = 1064386951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601257363) 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, 15698556 + ... + 15698657.

It is an arithmetic number, because the mean of its divisors is an integer number (282574926).

Almost surely, 2^1601257863 is an apocalyptic number.

1601257863 is a deficient number, since it is larger than the sum of its proper divisors (659341545).

1601257863 is a wasteful number, since it uses less digits than its factorization.

1601257863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31397233.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1601257863 is about 40015.7201984420. The cubic root of 1601257863 is about 1169.9135161438.

The spelling of 1601257863 in words is "one billion, six hundred one million, two hundred fifty-seven thousand, eight hundred sixty-three".