615155060161 has 4 divisors (see below), whose sum is σ = 615161758000. Its totient is φ = 615148362324.

The previous prime is 615155060159. The next prime is 615155060207. The reversal of 615155060161 is 161060551516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 615155060161 - 2¹ = 615155060159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 615155060161.

It is not an unprimeable number, because it can be changed into a prime (615155060101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3209211 + ... + 3395488.

It is an arithmetic number, because the mean of its divisors is an integer number (153790439500).

Almost surely, 2^615155060161 is an apocalyptic number.

It is an amenable number.

615155060161 is a deficient number, since it is larger than the sum of its proper divisors (6697839).

615155060161 is an equidigital number, since it uses as much as digits as its factorization.

615155060161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697838.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 615155060161 in words is "six hundred fifteen billion, one hundred fifty-five million, sixty thousand, one hundred sixty-one".