816053512 has 16 divisors (see below), whose sum is σ = 1530436860. Its totient is φ = 407937024.

The previous prime is 816053509. The next prime is 816053519. The reversal of 816053512 is 215350618.

It can be written as a sum of positive squares in 2 ways, for example, as 814874116 + 1179396 = 28546^2 + 1086^2 .

It is not an unprimeable number, because it can be changed into a prime (816053519) 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, 42648 + ... + 58744.

Almost surely, 2^816053512 is an apocalyptic number.

It is an amenable number.

816053512 is a deficient number, since it is larger than the sum of its proper divisors (714383348).

816053512 is a wasteful number, since it uses less digits than its factorization.

816053512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22440 (or 22436 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 816053512 is about 28566.6503461641. The cubic root of 816053512 is about 934.4861721571.

The spelling of 816053512 in words is "eight hundred sixteen million, fifty-three thousand, five hundred twelve".