1018351616 has 26 divisors (see below), whose sum is σ = 2036462802. Its totient is φ = 509173760.

The previous prime is 1018351601. The next prime is 1018351619. The reversal of 1018351616 is 6161538101.

It can be written as a sum of positive squares in only one way, i.e., 870486016 + 147865600 = 29504^2 + 12160^2 .

It is a super-2 number, since 2×1018351616² = 2074080027619622912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018351619) 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 as a sum of consecutive naturals, namely, 120215 + ... + 128406.

Almost surely, 2^1018351616 is an apocalyptic number.

1018351616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1018351616 is a deficient number, since it is larger than the sum of its proper divisors (1018111186).

1018351616 is an frugal number, since it uses more digits than its factorization.

1018351616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248645 (or 248623 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1018351616 is about 31911.6219581519. The cubic root of 1018351616 is about 1006.0801620384.

Adding to 1018351616 its reverse (6161538101), we get a palindrome (7179889717).

The spelling of 1018351616 in words is "one billion, eighteen million, three hundred fifty-one thousand, six hundred sixteen".