1616468522 has 4 divisors (see below), whose sum is σ = 2424702786. Its totient is φ = 808234260.

The previous prime is 1616468471. The next prime is 1616468527. The reversal of 1616468522 is 2258646161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2258646161 = 23 ⋅98202007.

It can be written as a sum of positive squares in only one way, i.e., 1043871481 + 572597041 = 32309^2 + 23929^2 .

It is a super-2 number, since 2×1616468522² = 5225940965233728968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616468522.

It is not an unprimeable number, because it can be changed into a prime (1616468527) by changing a digit.

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 as a sum of consecutive naturals, namely, 404117129 + ... + 404117132.

Almost surely, 2^1616468522 is an apocalyptic number.

1616468522 is a deficient number, since it is larger than the sum of its proper divisors (808234264).

1616468522 is an equidigital number, since it uses as much as digits as its factorization.

1616468522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808234263.

The product of its digits is 138240, while the sum is 41.

The square root of 1616468522 is about 40205.3295223407. The cubic root of 1616468522 is about 1173.6062598107.

The spelling of 1616468522 in words is "one billion, six hundred sixteen million, four hundred sixty-eight thousand, five hundred twenty-two".