155258585852551 has 8 divisors (see below), whose sum is σ = 162038691151200. Its totient is φ = 148480958220672.

The previous prime is 155258585852543. The next prime is 155258585852603.

155258585852551 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 155258585852551 - 2³ = 155258585852543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155258585852501) 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, 619288630 + ... + 619539283.

It is an arithmetic number, because the mean of its divisors is an integer number (20254836393900).

Almost surely, 2^{155258585852551} is an apocalyptic number.

155258585852551 is a deficient number, since it is larger than the sum of its proper divisors (6780105298649).

155258585852551 is a wasteful number, since it uses less digits than its factorization.

155258585852551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238833385.

The product of its digits is 800000000, while the sum is 70.

The spelling of 155258585852551 in words is "one hundred fifty-five trillion, two hundred fifty-eight billion, five hundred eighty-five million, eight hundred fifty-two thousand, five hundred fifty-one".