2666240041951 has 2 divisors, whose sum is σ = 2666240041952. Its totient is φ = 2666240041950.

The previous prime is 2666240041709. The next prime is 2666240041961. The reversal of 2666240041951 is 1591400426662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666240041951 - 2¹³ = 2666240033759 is a prime.

It is a super-2 number, since 2×2666240041951² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666240041961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333120020975 + 1333120020976.

It is an arithmetic number, because the mean of its divisors is an integer number (1333120020976).

Almost surely, 2^{2666240041951} is an apocalyptic number.

2666240041951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666240041951 is an equidigital number, since it uses as much as digits as its factorization.

2666240041951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 2666240041951 in words is "two trillion, six hundred sixty-six billion, two hundred forty million, forty-one thousand, nine hundred fifty-one".