1616266212 has 72 divisors (see below), whose sum is σ = 4325619648. Its totient is φ = 468473280.

The previous prime is 1616266181. The next prime is 1616266213. The reversal of 1616266212 is 2126626161.

It is a super-2 number, since 2×1616266212² = 5224632936105657888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1616266213) 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 in 23 ways as a sum of consecutive naturals, for example, 9198 + ... + 57594.

Almost surely, 2^1616266212 is an apocalyptic number.

1616266212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616266212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2162809824).

1616266212 is an abundant number, since it is smaller than the sum of its proper divisors (2709353436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616266212 is a wasteful number, since it uses less digits than its factorization.

1616266212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48449 (or 48436 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 1616266212 is about 40202.8134836357. The cubic root of 1616266212 is about 1173.5572966574.

The spelling of 1616266212 in words is "one billion, six hundred sixteen million, two hundred sixty-six thousand, two hundred twelve".