64956992041 has 2 divisors, whose sum is σ = 64956992042. Its totient is φ = 64956992040.

The previous prime is 64956992021. The next prime is 64956992101. The reversal of 64956992041 is 14029965946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47855937600 + 17101054441 = 218760^2 + 130771^2 .

It is a cyclic number.

It is not a de Polignac number, because 64956992041 - 2¹⁹ = 64956467753 is a prime.

It is not a weakly prime, because it can be changed into another prime (64956992011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32478496020 + 32478496021.

It is an arithmetic number, because the mean of its divisors is an integer number (32478496021).

Almost surely, 2^64956992041 is an apocalyptic number.

It is an amenable number.

64956992041 is a deficient number, since it is larger than the sum of its proper divisors (1).

64956992041 is an equidigital number, since it uses as much as digits as its factorization.

64956992041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 64956992041 in words is "sixty-four billion, nine hundred fifty-six million, nine hundred ninety-two thousand, forty-one".