155546011001 has 4 divisors (see below), whose sum is σ = 164695776372. Its totient is φ = 146396245632.

The previous prime is 155546010937. The next prime is 155546011007. The reversal of 155546011001 is 100110645551.

155546011001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145530805225 + 10015205776 = 381485^2 + 100076^2 .

It is a cyclic number.

It is not a de Polignac number, because 155546011001 - 2⁶ = 155546010937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155546011007) 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, 4574882660 + ... + 4574882693.

It is an arithmetic number, because the mean of its divisors is an integer number (41173944093).

Almost surely, 2^155546011001 is an apocalyptic number.

It is an amenable number.

155546011001 is a deficient number, since it is larger than the sum of its proper divisors (9149765371).

155546011001 is an equidigital number, since it uses as much as digits as its factorization.

155546011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149765370.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 155546011001 its reverse (100110645551), we get a palindrome (255656656552).

The spelling of 155546011001 in words is "one hundred fifty-five billion, five hundred forty-six million, eleven thousand, one".