615672020071 has 2 divisors, whose sum is σ = 615672020072. Its totient is φ = 615672020070.

The previous prime is 615672020063. The next prime is 615672020081. The reversal of 615672020071 is 170020276516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 615672020071 - 2³ = 615672020063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 615672020071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (615672020081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307836010035 + 307836010036.

It is an arithmetic number, because the mean of its divisors is an integer number (307836010036).

Almost surely, 2^615672020071 is an apocalyptic number.

615672020071 is a deficient number, since it is larger than the sum of its proper divisors (1).

615672020071 is an equidigital number, since it uses as much as digits as its factorization.

615672020071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

Adding to 615672020071 its reverse (170020276516), we get a palindrome (785692296587).

The spelling of 615672020071 in words is "six hundred fifteen billion, six hundred seventy-two million, twenty thousand, seventy-one".