155143359868 has 12 divisors (see below), whose sum is σ = 310286719792. Its totient is φ = 66490011360.

The previous prime is 155143359863. The next prime is 155143359887. The reversal of 155143359868 is 868953341551.

It is a happy number.

155143359868 is an admirable number.

It is a super-2 number, since 2×155143359868² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155143359863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2770417113 + ... + 2770417168.

Almost surely, 2^155143359868 is an apocalyptic number.

It is an amenable number.

155143359868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155143359868 is a wasteful number, since it uses less digits than its factorization.

155143359868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540834292 (or 5540834290 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 58.

The spelling of 155143359868 in words is "one hundred fifty-five billion, one hundred forty-three million, three hundred fifty-nine thousand, eight hundred sixty-eight".