140408215556 has 48 divisors (see below), whose sum is σ = 289959828480. Its totient is φ = 58216786560.

The previous prime is 140408215553. The next prime is 140408215559. The reversal of 140408215556 is 655512804041.

It is an interprime number because it is at equal distance from previous prime (140408215553) and next prime (140408215559).

It is not an unprimeable number, because it can be changed into a prime (140408215553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3197606 + ... + 3241218.

It is an arithmetic number, because the mean of its divisors is an integer number (6040829760).

Almost surely, 2^140408215556 is an apocalyptic number.

It is an amenable number.

140408215556 is an abundant number, since it is smaller than the sum of its proper divisors (149551612924).

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

140408215556 is a wasteful number, since it uses less digits than its factorization.

140408215556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47364 (or 47362 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 140408215556 in words is "one hundred forty billion, four hundred eight million, two hundred fifteen thousand, five hundred fifty-six".