615161051437 has 2 divisors, whose sum is σ = 615161051438. Its totient is φ = 615161051436.

The previous prime is 615161051381. The next prime is 615161051443. The reversal of 615161051437 is 734150161516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572532842281 + 42628209156 = 756659^2 + 206466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-615161051437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 615161051437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (615161051467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307580525718 + 307580525719.

It is an arithmetic number, because the mean of its divisors is an integer number (307580525719).

Almost surely, 2^615161051437 is an apocalyptic number.

It is an amenable number.

615161051437 is a deficient number, since it is larger than the sum of its proper divisors (1).

615161051437 is an equidigital number, since it uses as much as digits as its factorization.

615161051437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 615161051437 in words is "six hundred fifteen billion, one hundred sixty-one million, fifty-one thousand, four hundred thirty-seven".