1616503413 has 32 divisors (see below), whose sum is σ = 2682316800. Its totient is φ = 844917696.

The previous prime is 1616503391. The next prime is 1616503453. The reversal of 1616503413 is 3143056161.

It is not a de Polignac number, because 1616503413 - 2²⁶ = 1549394549 is a prime.

It is a super-2 number, since 2×1616503413² = 5226166568481297138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616503453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58281 + ... + 81422.

It is an arithmetic number, because the mean of its divisors is an integer number (83822400).

Almost surely, 2^1616503413 is an apocalyptic number.

It is an amenable number.

1616503413 is a deficient number, since it is larger than the sum of its proper divisors (1065813387).

1616503413 is a wasteful number, since it uses less digits than its factorization.

1616503413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139761.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1616503413 is about 40205.7634301352. The cubic root of 1616503413 is about 1173.6147037325.

Adding to 1616503413 its reverse (3143056161), we get a palindrome (4759559574).

The spelling of 1616503413 in words is "one billion, six hundred sixteen million, five hundred three thousand, four hundred thirteen".