64160077 has 2 divisors, whose sum is σ = 64160078. Its totient is φ = 64160076.

The previous prime is 64160069. The next prime is 64160113. The reversal of 64160077 is 77006146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40627876 + 23532201 = 6374^2 + 4851^2 .

It is a cyclic number.

It is not a de Polignac number, because 64160077 - 2³ = 64160069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64160027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32080038 + 32080039.

It is an arithmetic number, because the mean of its divisors is an integer number (32080039).

Almost surely, 2^64160077 is an apocalyptic number.

It is an amenable number.

64160077 is a deficient number, since it is larger than the sum of its proper divisors (1).

64160077 is an equidigital number, since it uses as much as digits as its factorization.

64160077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 64160077 is about 8009.9985642945. The cubic root of 64160077 is about 400.3332160905. Note that the first 3 decimals are identical.

The spelling of 64160077 in words is "sixty-four million, one hundred sixty thousand, seventy-seven".