64266022157 has 2 divisors, whose sum is σ = 64266022158. Its totient is φ = 64266022156.

The previous prime is 64266022147. The next prime is 64266022229. The reversal of 64266022157 is 75122066246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63974090761 + 291931396 = 252931^2 + 17086^2 .

It is a cyclic number.

It is not a de Polignac number, because 64266022157 - 2¹⁴ = 64266005773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64266022147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32133011078 + 32133011079.

It is an arithmetic number, because the mean of its divisors is an integer number (32133011079).

Almost surely, 2^64266022157 is an apocalyptic number.

It is an amenable number.

64266022157 is a deficient number, since it is larger than the sum of its proper divisors (1).

64266022157 is an equidigital number, since it uses as much as digits as its factorization.

64266022157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 64266022157 in words is "sixty-four billion, two hundred sixty-six million, twenty-two thousand, one hundred fifty-seven".