158241762840 has 128 divisors (see below), whose sum is σ = 543001397760. Its totient is φ = 36138998784.

The previous prime is 158241762839. The next prime is 158241762841. The reversal of 158241762840 is 48267142851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (158241762839) and next prime (158241762841).

It is a self number, because there is not a number n which added to its sum of digits gives 158241762840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158241762841) 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, 923167 + ... + 1081073.

It is an arithmetic number, because the mean of its divisors is an integer number (4242198420).

Almost surely, 2^158241762840 is an apocalyptic number.

158241762840 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 158241762840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271500698880).

158241762840 is an abundant number, since it is smaller than the sum of its proper divisors (384759634920).

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

158241762840 is a wasteful number, since it uses less digits than its factorization.

158241762840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159121 (or 159117 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 158241762840 in words is "one hundred fifty-eight billion, two hundred forty-one million, seven hundred sixty-two thousand, eight hundred forty".