1601489366 has 8 divisors (see below), whose sum is σ = 2528667480. Its totient is φ = 758600208.

The previous prime is 1601489363. The next prime is 1601489371. The reversal of 1601489366 is 6639841061.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1601489366² = 5129536378822163912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601489363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21072191 + ... + 21072266.

It is an arithmetic number, because the mean of its divisors is an integer number (316083435).

Almost surely, 2^1601489366 is an apocalyptic number.

1601489366 is a deficient number, since it is larger than the sum of its proper divisors (927178114).

1601489366 is a wasteful number, since it uses less digits than its factorization.

1601489366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42144478.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1601489366 is about 40018.6127445717. The cubic root of 1601489366 is about 1169.9698937879.

The spelling of 1601489366 in words is "one billion, six hundred one million, four hundred eighty-nine thousand, three hundred sixty-six".