43020885664651 has 2 divisors, whose sum is σ = 43020885664652. Its totient is φ = 43020885664650.

The previous prime is 43020885664643. The next prime is 43020885664699. The reversal of 43020885664651 is 15646658802034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43020885664651 - 2³ = 43020885664643 is a prime.

It is not a weakly prime, because it can be changed into another prime (43020885664151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21510442832325 + 21510442832326.

It is an arithmetic number, because the mean of its divisors is an integer number (21510442832326).

Almost surely, 2^{43020885664651} is an apocalyptic number.

43020885664651 is a deficient number, since it is larger than the sum of its proper divisors (1).

43020885664651 is an equidigital number, since it uses as much as digits as its factorization.

43020885664651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33177600, while the sum is 58.

The spelling of 43020885664651 in words is "forty-three trillion, twenty billion, eight hundred eighty-five million, six hundred sixty-four thousand, six hundred fifty-one".