155844287156 has 24 divisors (see below), whose sum is σ = 284610824064. Its totient is φ = 74527518560.

The previous prime is 155844287147. The next prime is 155844287161. The reversal of 155844287156 is 651782448551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040366 + ... + 1180698.

It is an arithmetic number, because the mean of its divisors is an integer number (11858784336).

Almost surely, 2^155844287156 is an apocalyptic number.

It is an amenable number.

155844287156 is a deficient number, since it is larger than the sum of its proper divisors (128766536908).

155844287156 is a wasteful number, since it uses less digits than its factorization.

155844287156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152431 (or 152429 counting only the distinct ones).

The product of its digits is 10752000, while the sum is 56.

The spelling of 155844287156 in words is "one hundred fifty-five billion, eight hundred forty-four million, two hundred eighty-seven thousand, one hundred fifty-six".