158661740160 has 384 divisors, whose sum is σ = 683071608960. Its totient is φ = 32968581120.

The previous prime is 158661740131. The next prime is 158661740177. The reversal of 158661740160 is 61047166851.

158661740160 is a `hidden beast` number, since 1 + 586 + 6 + 1 + 7 + 4 + 0 + 1 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264654 + ... + 622386.

It is an arithmetic number, because the mean of its divisors is an integer number (1778832315).

Almost surely, 2^158661740160 is an apocalyptic number.

158661740160 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 158661740160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341535804480).

158661740160 is an abundant number, since it is smaller than the sum of its proper divisors (524409868800).

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

158661740160 is a wasteful number, since it uses less digits than its factorization.

158661740160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357776 (or 357761 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 158661740160 in words is "one hundred fifty-eight billion, six hundred sixty-one million, seven hundred forty thousand, one hundred sixty".