155799156 has 24 divisors (see below), whose sum is σ = 373357600. Its totient is φ = 50529312.

The previous prime is 155799103. The next prime is 155799157. The reversal of 155799156 is 651997551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155799157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175006 + ... + 175893.

Almost surely, 2^155799156 is an apocalyptic number.

It is an amenable number.

155799156 is an abundant number, since it is smaller than the sum of its proper divisors (217558444).

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

155799156 is a wasteful number, since it uses less digits than its factorization.

155799156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350943 (or 350941 counting only the distinct ones).

The product of its digits is 425250, while the sum is 48.

The square root of 155799156 is about 12481.9532125385. The cubic root of 155799156 is about 538.0901393538.

The spelling of 155799156 in words is "one hundred fifty-five million, seven hundred ninety-nine thousand, one hundred fifty-six".