651283138816 has 36 divisors (see below), whose sum is σ = 1305852013312. Its totient is φ = 324181264896.

The previous prime is 651283138769. The next prime is 651283138819. The reversal of 651283138816 is 618831382156.

It is a super-2 number, since 2×651283138816² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (651283138819) 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, 5647116 + ... + 5761291.

Almost surely, 2^651283138816 is an apocalyptic number.

It is an amenable number.

651283138816 is an abundant number, since it is smaller than the sum of its proper divisors (654568874496).

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

651283138816 is a wasteful number, since it uses less digits than its factorization.

651283138816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11408646 (or 11408632 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The spelling of 651283138816 in words is "six hundred fifty-one billion, two hundred eighty-three million, one hundred thirty-eight thousand, eight hundred sixteen".