158854997880 has 256 divisors, whose sum is σ = 561959078400. Its totient is φ = 39777454080.

The previous prime is 158854997867. The next prime is 158854997891. The reversal of 158854997880 is 88799458851.

158854997880 is a `hidden beast` number, since 1 + 5 + 8 + 8 + 549 + 9 + 78 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 158854997799 and 158854997808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8123715 + ... + 8143245.

It is an arithmetic number, because the mean of its divisors is an integer number (2195152650).

Almost surely, 2^158854997880 is an apocalyptic number.

158854997880 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 158854997880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280979539200).

158854997880 is an abundant number, since it is smaller than the sum of its proper divisors (403104080520).

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

158854997880 is a wasteful number, since it uses less digits than its factorization.

158854997880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20011 (or 20001 counting only the distinct ones).

The product of its (nonzero) digits is 232243200, while the sum is 72.

The spelling of 158854997880 in words is "one hundred fifty-eight billion, eight hundred fifty-four million, nine hundred ninety-seven thousand, eight hundred eighty".