155215690324 has 6 divisors (see below), whose sum is σ = 271627458074. Its totient is φ = 77607845160.

The previous prime is 155215690319. The next prime is 155215690327. The reversal of 155215690324 is 423096512551.

It can be written as a sum of positive squares in only one way, i.e., 131320713924 + 23894976400 = 362382^2 + 154580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155215690327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19401961287 + ... + 19401961294.

Almost surely, 2^155215690324 is an apocalyptic number.

It is an amenable number.

155215690324 is a deficient number, since it is larger than the sum of its proper divisors (116411767750).

155215690324 is a wasteful number, since it uses less digits than its factorization.

155215690324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38803922585 (or 38803922583 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 155215690324 in words is "one hundred fifty-five billion, two hundred fifteen million, six hundred ninety thousand, three hundred twenty-four".