63153146240021 has 2 divisors, whose sum is σ = 63153146240022. Its totient is φ = 63153146240020.

The previous prime is 63153146239951. The next prime is 63153146240143. The reversal of 63153146240021 is 12004264135136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51432205140625 + 11720941099396 = 7171625^2 + 3423586^2 .

It is a cyclic number.

It is not a de Polignac number, because 63153146240021 - 2¹⁴ = 63153146223637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63153146240221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31576573120010 + 31576573120011.

It is an arithmetic number, because the mean of its divisors is an integer number (31576573120011).

Almost surely, 2^{63153146240021} is an apocalyptic number.

It is an amenable number.

63153146240021 is a deficient number, since it is larger than the sum of its proper divisors (1).

63153146240021 is an equidigital number, since it uses as much as digits as its factorization.

63153146240021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 63153146240021 in words is "sixty-three trillion, one hundred fifty-three billion, one hundred forty-six million, two hundred forty thousand, twenty-one".