1418737661 has 8 divisors (see below), whose sum is σ = 1597640448. Its totient is φ = 1248156000.

The previous prime is 1418737643. The next prime is 1418737667. The reversal of 1418737661 is 1667378141.

It is a happy number.

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 1418737661 - 2⁶ = 1418737597 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 (1418737667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079920 + ... + 2080601.

It is an arithmetic number, because the mean of its divisors is an integer number (199705056).

Almost surely, 2^1418737661 is an apocalyptic number.

1418737661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1418737661 is a deficient number, since it is larger than the sum of its proper divisors (178902787).

1418737661 is a wasteful number, since it uses less digits than its factorization.

1418737661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160563.

The product of its digits is 169344, while the sum is 44.

The square root of 1418737661 is about 37666.1341393034. The cubic root of 1418737661 is about 1123.6577007286.

The spelling of 1418737661 in words is "one billion, four hundred eighteen million, seven hundred thirty-seven thousand, six hundred sixty-one".