1661353034 has 32 divisors (see below), whose sum is σ = 2775444480. Its totient is φ = 739465200.

The previous prime is 1661353003. The next prime is 1661353049. The reversal of 1661353034 is 4303531661.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349397 + ... + 354119.

It is an arithmetic number, because the mean of its divisors is an integer number (86732640).

Almost surely, 2^1661353034 is an apocalyptic number.

1661353034 is a deficient number, since it is larger than the sum of its proper divisors (1114091446).

1661353034 is a wasteful number, since it uses less digits than its factorization.

1661353034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 1661353034 is about 40759.6986495239. The cubic root of 1661353034 is about 1184.3697584524.

Adding to 1661353034 its reverse (4303531661), we get a palindrome (5964884695).

The spelling of 1661353034 in words is "one billion, six hundred sixty-one million, three hundred fifty-three thousand, thirty-four".