1536421616 has 40 divisors (see below), whose sum is σ = 3010283520. Its totient is φ = 759616704.

The previous prime is 1536421603. The next prime is 1536421639. The reversal of 1536421616 is 6161246351.

It is a super-2 number, since 2×1536421616² = 4721182764224102912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704015 + ... + 706193.

It is an arithmetic number, because the mean of its divisors is an integer number (75257088).

Almost surely, 2^1536421616 is an apocalyptic number.

1536421616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1536421616 is a deficient number, since it is larger than the sum of its proper divisors (1473861904).

1536421616 is a wasteful number, since it uses less digits than its factorization.

1536421616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2655 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 1536421616 is about 39197.2143908212. The cubic root of 1536421616 is about 1153.9052152505.

Adding to 1536421616 its reverse (6161246351), we get a palindrome (7697667967).

The spelling of 1536421616 in words is "one billion, five hundred thirty-six million, four hundred twenty-one thousand, six hundred sixteen".