158263069440 has 432 divisors, whose sum is σ = 622574944992. Its totient is φ = 34045820928.

The previous prime is 158263069439. The next prime is 158263069453. The reversal of 158263069440 is 44960362851.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 158263069440.

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, 3173982 + ... + 3223458.

It is an arithmetic number, because the mean of its divisors is an integer number (1441145706).

Almost surely, 2^158263069440 is an apocalyptic number.

158263069440 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 158263069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311287472496).

158263069440 is an abundant number, since it is smaller than the sum of its proper divisors (464311875552).

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

158263069440 is a wasteful number, since it uses less digits than its factorization.

158263069440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49532 (or 49511 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 158263069440 in words is "one hundred fifty-eight billion, two hundred sixty-three million, sixty-nine thousand, four hundred forty".