155691352200 has 96 divisors (see below), whose sum is σ = 483100061760. Its totient is φ = 41478393600.

The previous prime is 155691352181. The next prime is 155691352207. The reversal of 155691352200 is 2253196551.

It is not an unprimeable number, because it can be changed into a prime (155691352207) 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 in 23 ways as a sum of consecutive naturals, for example, 514317 + ... + 758883.

It is an arithmetic number, because the mean of its divisors is an integer number (5032292310).

Almost surely, 2^155691352200 is an apocalyptic number.

155691352200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155691352200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241550030880).

155691352200 is an abundant number, since it is smaller than the sum of its proper divisors (327408709560).

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

155691352200 is a wasteful number, since it uses less digits than its factorization.

155691352200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245647 (or 245638 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 155691352200 in words is "one hundred fifty-five billion, six hundred ninety-one million, three hundred fifty-two thousand, two hundred".