651244214061 has 48 divisors (see below), whose sum is σ = 1107057788928. Its totient is φ = 361161849600.

The previous prime is 651244214059. The next prime is 651244214087. The reversal of 651244214061 is 160412442156.

651244214061 is a `hidden beast` number, since 6 + 5 + 1 + 244 + 2 + 1 + 406 + 1 = 666.

651244214061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 651244214061 - 2¹ = 651244214059 is a prime.

It is a super-2 number, since 2×651244214061² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651244214011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166666 + ... + 1153371.

It is an arithmetic number, because the mean of its divisors is an integer number (23063703936).

Almost surely, 2^651244214061 is an apocalyptic number.

It is an amenable number.

651244214061 is a deficient number, since it is larger than the sum of its proper divisors (455813574867).

651244214061 is a wasteful number, since it uses less digits than its factorization.

651244214061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320282 (or 1320279 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 651244214061 in words is "six hundred fifty-one billion, two hundred forty-four million, two hundred fourteen thousand, sixty-one".