155846980 has 12 divisors (see below), whose sum is σ = 327278700. Its totient is φ = 62338784.

The previous prime is 155846963. The next prime is 155846989. The reversal of 155846980 is 89648551.

It can be written as a sum of positive squares in 2 ways, for example, as 58706244 + 97140736 = 7662^2 + 9856^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155846980.

It is not an unprimeable number, because it can be changed into a prime (155846989) 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, 3896155 + ... + 3896194.

It is an arithmetic number, because the mean of its divisors is an integer number (27273225).

Almost surely, 2^155846980 is an apocalyptic number.

155846980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155846980 is an abundant number, since it is smaller than the sum of its proper divisors (171431720).

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

155846980 is a wasteful number, since it uses less digits than its factorization.

155846980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792358 (or 7792356 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 155846980 is about 12483.8687913643. The cubic root of 155846980 is about 538.1451909790.

The spelling of 155846980 in words is "one hundred fifty-five million, eight hundred forty-six thousand, nine hundred eighty".