157843499178240 has 360 divisors, whose sum is σ = 564827965732800. Its totient is φ = 42088986906624.

The previous prime is 157843499178229. The next prime is 157843499178269. The reversal of 157843499178240 is 42871994348751.

157843499178240 is a `hidden beast` number, since 1 + 5 + 7 + 8 + 4 + 3 + 499 + 17 + 82 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2135667367 + ... + 2135741273.

It is an arithmetic number, because the mean of its divisors is an integer number (1568966571480).

Almost surely, 2^{157843499178240} is an apocalyptic number.

157843499178240 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 157843499178240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282413982866400).

157843499178240 is an abundant number, since it is smaller than the sum of its proper divisors (406984466554560).

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

157843499178240 is an equidigital number, since it uses as much as digits as its factorization.

157843499178240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94539 (or 94516 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 72.

The spelling of 157843499178240 in words is "one hundred fifty-seven trillion, eight hundred forty-three billion, four hundred ninety-nine million, one hundred seventy-eight thousand, two hundred forty".