158677920 has 192 divisors, whose sum is σ = 579882240. Its totient is φ = 40449024.

The previous prime is 158677901. The next prime is 158677927. The reversal of 158677920 is 29776851.

158677920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (158677927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98562 + ... + 100158.

It is an arithmetic number, because the mean of its divisors is an integer number (3020220).

Almost surely, 2^158677920 is an apocalyptic number.

158677920 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 158677920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289941120).

158677920 is an abundant number, since it is smaller than the sum of its proper divisors (421204320).

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

158677920 is a wasteful number, since it uses less digits than its factorization.

158677920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 158677920 is about 12596.7424360427. The cubic root of 158677920 is about 541.3841036180.

The spelling of 158677920 in words is "one hundred fifty-eight million, six hundred seventy-seven thousand, nine hundred twenty".