1020166051 has 2 divisors, whose sum is σ = 1020166052. Its totient is φ = 1020166050.

The previous prime is 1020166019. The next prime is 1020166097. The reversal of 1020166051 is 1506610201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020166051 - 2⁵ = 1020166019 is a prime.

It is a super-2 number, since 2×1020166051² = 2081477543225869202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020166151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510083025 + 510083026.

It is an arithmetic number, because the mean of its divisors is an integer number (510083026).

Almost surely, 2^1020166051 is an apocalyptic number.

1020166051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020166051 is an equidigital number, since it uses as much as digits as its factorization.

1020166051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1020166051 is about 31940.0383687935. The cubic root of 1020166051 is about 1006.6773310104.

Adding to 1020166051 its reverse (1506610201), we get a palindrome (2526776252).

The spelling of 1020166051 in words is "one billion, twenty million, one hundred sixty-six thousand, fifty-one".