1011620216 has 16 divisors (see below), whose sum is σ = 1906419240. Its totient is φ = 503241760.

The previous prime is 1011620213. The next prime is 1011620221. The reversal of 1011620216 is 6120261101.

It is a super-2 number, since 2×1011620216² = 2046750922839773312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011620213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319370 + ... + 322521.

Almost surely, 2^1011620216 is an apocalyptic number.

It is an amenable number.

1011620216 is a deficient number, since it is larger than the sum of its proper divisors (894799024).

1011620216 is a wasteful number, since it uses less digits than its factorization.

1011620216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642094 (or 642090 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1011620216 is about 31805.9776771600. The cubic root of 1011620216 is about 1003.8584981767.

Adding to 1011620216 its reverse (6120261101), we get a palindrome (7131881317).

The spelling of 1011620216 in words is "one billion, eleven million, six hundred twenty thousand, two hundred sixteen".