155551535700 has 288 divisors, whose sum is σ = 501069929472. Its totient is φ = 36941184000.

The previous prime is 155551535687. The next prime is 155551535707. The reversal of 155551535700 is 7535155551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155551535707) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38188864 + ... + 38192936.

It is an arithmetic number, because the mean of its divisors is an integer number (1739826144).

Almost surely, 2^155551535700 is an apocalyptic number.

155551535700 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 155551535700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250534964736).

155551535700 is an abundant number, since it is smaller than the sum of its proper divisors (345518393772).

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

155551535700 is a wasteful number, since it uses less digits than its factorization.

155551535700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4328 counting only the distinct ones).

The product of its (nonzero) digits is 328125, while the sum is 42.

The spelling of 155551535700 in words is "one hundred fifty-five billion, five hundred fifty-one million, five hundred thirty-five thousand, seven hundred".