155840951108 has 6 divisors (see below), whose sum is σ = 272721664446. Its totient is φ = 77920475552.

The previous prime is 155840951051. The next prime is 155840951117. The reversal of 155840951108 is 801159048551.

155840951108 is digitally balanced in base 3, 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., 93784162564 + 62056788544 = 306242^2 + 249112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19480118885 + ... + 19480118892.

It is an arithmetic number, because the mean of its divisors is an integer number (45453610741).

Almost surely, 2^155840951108 is an apocalyptic number.

It is an amenable number.

155840951108 is a deficient number, since it is larger than the sum of its proper divisors (116880713338).

155840951108 is a wasteful number, since it uses less digits than its factorization.

155840951108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38960237781 (or 38960237779 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 47.

Adding to 155840951108 its reverse (801159048551), we get a palindrome (956999999659).

The spelling of 155840951108 in words is "one hundred fifty-five billion, eight hundred forty million, nine hundred fifty-one thousand, one hundred eight".