155010500005001 has 8 divisors (see below), whose sum is σ = 158791511478600. Its totient is φ = 151229501272960.

The previous prime is 155010500004967. The next prime is 155010500005037. The reversal of 155010500005001 is 100500005010551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 793344708601 + 154217155296400 = 890699^2 + 12418420^2 .

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 155010500005001 - 2¹⁰ = 155010500003977 is a prime.

It is a super-2 number, since 2×155010500005001² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155010500005051) 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, 24300455 + ... + 30008883.

It is an arithmetic number, because the mean of its divisors is an integer number (19848938934825).

Almost surely, 2^{155010500005001} is an apocalyptic number.

It is an amenable number.

155010500005001 is a deficient number, since it is larger than the sum of its proper divisors (3781011473599).

155010500005001 is an equidigital number, since it uses as much as digits as its factorization.

155010500005001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370779.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 155010500005001 its reverse (100500005010551), we get a palindrome (255510505015552).

The spelling of 155010500005001 in words is "one hundred fifty-five trillion, ten billion, five hundred million, five thousand, one".