166377239003 has 2 divisors, whose sum is σ = 166377239004. Its totient is φ = 166377239002.

The previous prime is 166377238997. The next prime is 166377239057. The reversal of 166377239003 is 300932773661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166377239003 - 2¹⁴ = 166377222619 is a prime.

It is a super-2 number, since 2×166377239003² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166377239603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83188619501 + 83188619502.

It is an arithmetic number, because the mean of its divisors is an integer number (83188619502).

Almost surely, 2^166377239003 is an apocalyptic number.

166377239003 is a deficient number, since it is larger than the sum of its proper divisors (1).

166377239003 is an equidigital number, since it uses as much as digits as its factorization.

166377239003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 47.

The spelling of 166377239003 in words is "one hundred sixty-six billion, three hundred seventy-seven million, two hundred thirty-nine thousand, three".