651740620001 has 2 divisors, whose sum is σ = 651740620002. Its totient is φ = 651740620000.

The previous prime is 651740619983. The next prime is 651740620057. The reversal of 651740620001 is 100026047156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378421825600 + 273318794401 = 615160^2 + 522799^2 .

It is a cyclic number.

It is not a de Polignac number, because 651740620001 - 2¹⁸ = 651740357857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651740620001.

It is not a weakly prime, because it can be changed into another prime (651740620301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325870310000 + 325870310001.

It is an arithmetic number, because the mean of its divisors is an integer number (325870310001).

Almost surely, 2^651740620001 is an apocalyptic number.

It is an amenable number.

651740620001 is a deficient number, since it is larger than the sum of its proper divisors (1).

651740620001 is an equidigital number, since it uses as much as digits as its factorization.

651740620001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 651740620001 its reverse (100026047156), we get a palindrome (751766667157).

The spelling of 651740620001 in words is "six hundred fifty-one billion, seven hundred forty million, six hundred twenty thousand, one".