1966624301 has 2 divisors, whose sum is σ = 1966624302. Its totient is φ = 1966624300.

The previous prime is 1966624271. The next prime is 1966624313. The reversal of 1966624301 is 1034266691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011876100 + 954748201 = 31810^2 + 30899^2 .

It is a cyclic number.

It is not a de Polignac number, because 1966624301 - 2³⁰ = 892882477 is a prime.

It is a super-2 number, since 2×1966624301² = 7735222282567477202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966624321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983312150 + 983312151.

It is an arithmetic number, because the mean of its divisors is an integer number (983312151).

Almost surely, 2^1966624301 is an apocalyptic number.

It is an amenable number.

1966624301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966624301 is an equidigital number, since it uses as much as digits as its factorization.

1966624301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1966624301 is about 44346.6379898183. The cubic root of 1966624301 is about 1252.8732414068.

The spelling of 1966624301 in words is "one billion, nine hundred sixty-six million, six hundred twenty-four thousand, three hundred one".