159440461240 has 16 divisors (see below), whose sum is σ = 358741037880. Its totient is φ = 63776184480.

The previous prime is 159440461183. The next prime is 159440461253. The reversal of 159440461240 is 42164044951.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3986011531 = 159440461240 / (1 + 5 + 9 + 4 + 4 + 0 + 4 + 6 + 1 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 159440461193 and 159440461202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993005726 + ... + 1993005805.

Almost surely, 2^159440461240 is an apocalyptic number.

159440461240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159440461240 is an abundant number, since it is smaller than the sum of its proper divisors (199300576640).

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

159440461240 is a wasteful number, since it uses less digits than its factorization.

159440461240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986011542 (or 3986011538 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 159440461240 in words is "one hundred fifty-nine billion, four hundred forty million, four hundred sixty-one thousand, two hundred forty".