155640101008 has 30 divisors (see below), whose sum is σ = 350785790646. Its totient is φ = 66702900096.

The previous prime is 155640100961. The next prime is 155640101033. The reversal of 155640101008 is 800101046551.

155640101008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 154785591184 + 854509824 = 393428^2 + 29232^2 .

It is a super-3 number, since 3×155640101008³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 99259485 + ... + 99261052.

Almost surely, 2^155640101008 is an apocalyptic number.

It is an amenable number.

155640101008 is an abundant number, since it is smaller than the sum of its proper divisors (195145689638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155640101008 is a wasteful number, since it uses less digits than its factorization.

155640101008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198520559 (or 198520546 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 155640101008 its reverse (800101046551), we get a palindrome (955741147559).

The spelling of 155640101008 in words is "one hundred fifty-five billion, six hundred forty million, one hundred one thousand, eight".