155426121624551 has 8 divisors (see below), whose sum is σ = 162516805338624. Its totient is φ = 148363190098200.

The previous prime is 155426121624539. The next prime is 155426121624647.

155426121624551 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 a de Polignac number, because none of the positive numbers 2^k-155426121624551 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 155426121624551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155426121624511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6938035475 + ... + 6938057876.

It is an arithmetic number, because the mean of its divisors is an integer number (20314600667328).

Almost surely, 2^{155426121624551} is an apocalyptic number.

155426121624551 is a deficient number, since it is larger than the sum of its proper divisors (7090683714073).

155426121624551 is a wasteful number, since it uses less digits than its factorization.

155426121624551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13876093861.

The product of its digits is 2880000, while the sum is 50.

The spelling of 155426121624551 in words is "one hundred fifty-five trillion, four hundred twenty-six billion, one hundred twenty-one million, six hundred twenty-four thousand, five hundred fifty-one".