1601021366 has 16 divisors (see below), whose sum is σ = 2746867200. Its totient is φ = 685587240.

The previous prime is 1601021351. The next prime is 1601021399. The reversal of 1601021366 is 6631201061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29216 + ... + 63683.

It is an arithmetic number, because the mean of its divisors is an integer number (171679200).

Almost surely, 2^1601021366 is an apocalyptic number.

1601021366 is a deficient number, since it is larger than the sum of its proper divisors (1145845834).

1601021366 is a wasteful number, since it uses less digits than its factorization.

1601021366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94139.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1601021366 is about 40012.7650381725. The cubic root of 1601021366 is about 1169.8559167057.

The spelling of 1601021366 in words is "one billion, six hundred one million, twenty-one thousand, three hundred sixty-six".