158721763200 has 1536 divisors, whose sum is σ = 713954304000. Its totient is φ = 29926195200.

The previous prime is 158721763181. The next prime is 158721763237. The reversal of 158721763200 is 2367127851.

It is a Cunningham number, because it is equal to 398399²-1.

It is a super-2 number, since 2×158721763200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 797596701 + ... + 797596899.

It is an arithmetic number, because the mean of its divisors is an integer number (464814000).

Almost surely, 2^158721763200 is an apocalyptic number.

158721763200 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 158721763200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356977152000).

158721763200 is an abundant number, since it is smaller than the sum of its proper divisors (555232540800).

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

158721763200 is a wasteful number, since it uses less digits than its factorization.

158721763200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 158721763200 in words is "one hundred fifty-eight billion, seven hundred twenty-one million, seven hundred sixty-three thousand, two hundred".