651533015341212 has 48 divisors (see below), whose sum is σ = 1600258482130560. Its totient is φ = 205747016874048.

The previous prime is 651533015341123. The next prime is 651533015341259. The reversal of 651533015341212 is 212143510335156.

It is a super-2 number, since 2×651533015341212² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298798218 + ... + 300970830.

It is an arithmetic number, because the mean of its divisors is an integer number (33338718377720).

Almost surely, 2^{651533015341212} is an apocalyptic number.

It is an amenable number.

651533015341212 is an abundant number, since it is smaller than the sum of its proper divisors (948725466789348).

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

651533015341212 is a wasteful number, since it uses less digits than its factorization.

651533015341212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487922 (or 3487920 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

Adding to 651533015341212 its reverse (212143510335156), we get a palindrome (863676525676368).

The spelling of 651533015341212 in words is "six hundred fifty-one trillion, five hundred thirty-three billion, fifteen million, three hundred forty-one thousand, two hundred twelve".