1566055151 has 2 divisors, whose sum is σ = 1566055152. Its totient is φ = 1566055150.

The previous prime is 1566055133. The next prime is 1566055159. The reversal of 1566055151 is 1515506651.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1566055151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1566055159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 783027575 + 783027576.

It is an arithmetic number, because the mean of its divisors is an integer number (783027576).

Almost surely, 2^1566055151 is an apocalyptic number.

1566055151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1566055151 is an equidigital number, since it uses as much as digits as its factorization.

1566055151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1566055151 is about 39573.4146997703. The cubic root of 1566055151 is about 1161.2766243858.

The spelling of 1566055151 in words is "one billion, five hundred sixty-six million, fifty-five thousand, one hundred fifty-one".