1618161038 has 8 divisors (see below), whose sum is σ = 2613952488. Its totient is φ = 746843544.

The previous prime is 1618160987. The next prime is 1618161043. The reversal of 1618161038 is 8301618161.

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

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1618160989 and 1618161007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31118456 + ... + 31118507.

It is an arithmetic number, because the mean of its divisors is an integer number (326744061).

Almost surely, 2^1618161038 is an apocalyptic number.

1618161038 is a deficient number, since it is larger than the sum of its proper divisors (995791450).

1618161038 is a wasteful number, since it uses less digits than its factorization.

1618161038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62236978.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1618161038 is about 40226.3724190984. The cubic root of 1618161038 is about 1174.0157232971.

Adding to 1618161038 its reverse (8301618161), we get a palindrome (9919779199).

The spelling of 1618161038 in words is "one billion, six hundred eighteen million, one hundred sixty-one thousand, thirty-eight".