153449686500 has 768 divisors, whose sum is σ = 536203100160. Its totient is φ = 33707520000.

The previous prime is 153449686493. The next prime is 153449686517. The reversal of 153449686500 is 5686944351.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 803401405 + ... + 803401595.

It is an arithmetic number, because the mean of its divisors is an integer number (698181120).

Almost surely, 2^153449686500 is an apocalyptic number.

153449686500 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 153449686500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268101550080).

153449686500 is an abundant number, since it is smaller than the sum of its proper divisors (382753413660).

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

153449686500 is a wasteful number, since it uses less digits than its factorization.

153449686500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 153449686500 in words is "one hundred fifty-three billion, four hundred forty-nine million, six hundred eighty-six thousand, five hundred".