155025605161 has 8 divisors (see below), whose sum is σ = 181493391744. Its totient is φ = 129638136480.

The previous prime is 155025605113. The next prime is 155025605191. The reversal of 155025605161 is 161506520551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155025605161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155025605161.

It is not an unprimeable number, because it can be changed into a prime (155025605191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270079165 + ... + 270079738.

It is an arithmetic number, because the mean of its divisors is an integer number (22686673968).

Almost surely, 2^155025605161 is an apocalyptic number.

It is an amenable number.

155025605161 is a deficient number, since it is larger than the sum of its proper divisors (26467786583).

155025605161 is an equidigital number, since it uses as much as digits as its factorization.

155025605161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540158951.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 155025605161 in words is "one hundred fifty-five billion, twenty-five million, six hundred five thousand, one hundred sixty-one".