511342206157 has 2 divisors, whose sum is σ = 511342206158. Its totient is φ = 511342206156.

The previous prime is 511342206103. The next prime is 511342206169. The reversal of 511342206157 is 751602243115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390607500196 + 120734705961 = 624986^2 + 347469^2 .

It is a cyclic number.

It is not a de Polignac number, because 511342206157 - 2²⁷ = 511207988429 is a prime.

It is a super-2 number, since 2×511342206157² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511342201157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255671103078 + 255671103079.

It is an arithmetic number, because the mean of its divisors is an integer number (255671103079).

Almost surely, 2^511342206157 is an apocalyptic number.

It is an amenable number.

511342206157 is a deficient number, since it is larger than the sum of its proper divisors (1).

511342206157 is an equidigital number, since it uses as much as digits as its factorization.

511342206157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 511342206157 in words is "five hundred eleven billion, three hundred forty-two million, two hundred six thousand, one hundred fifty-seven".