1661014063 has 8 divisors (see below), whose sum is σ = 1719956880. Its totient is φ = 1602182400.

The previous prime is 1661013967. The next prime is 1661014073. The reversal of 1661014063 is 3604101661.

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 1661014063 - 2¹⁷ = 1660882991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1661014073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231 + ... + 57727.

It is an arithmetic number, because the mean of its divisors is an integer number (214994610).

Almost surely, 2^1661014063 is an apocalyptic number.

1661014063 is a deficient number, since it is larger than the sum of its proper divisors (58942817).

1661014063 is a wasteful number, since it uses less digits than its factorization.

1661014063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55577.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1661014063 is about 40755.5402736855. The cubic root of 1661014063 is about 1184.2892027647.

The spelling of 1661014063 in words is "one billion, six hundred sixty-one million, fourteen thousand, sixty-three".