651465036022651 has 24 divisors (see below), whose sum is σ = 673570535909040. Its totient is φ = 630063694503360.

The previous prime is 651465036022649. The next prime is 651465036022781. The reversal of 651465036022651 is 156220630564156.

It is not a de Polignac number, because 651465036022651 - 2¹ = 651465036022649 is a prime.

It is a super-2 number, since 2×651465036022651² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651465036022601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23033788356 + ... + 23033816638.

It is an arithmetic number, because the mean of its divisors is an integer number (28065438996210).

Almost surely, 2^{651465036022651} is an apocalyptic number.

651465036022651 is a deficient number, since it is larger than the sum of its proper divisors (22105499886389).

651465036022651 is a wasteful number, since it uses less digits than its factorization.

651465036022651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42187 (or 42156 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 651465036022651 in words is "six hundred fifty-one trillion, four hundred sixty-five billion, thirty-six million, twenty-two thousand, six hundred fifty-one".