242215155415140 has 24 divisors (see below), whose sum is σ = 678202435162560. Its totient is φ = 64590708110688.

The previous prime is 242215155415091. The next prime is 242215155415147. The reversal of 242215155415140 is 41514551512242.

It is a junction number, because it is equal to n+sod(n) for n = 242215155415092 and 242215155415101.

It is not an unprimeable number, because it can be changed into a prime (242215155415147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018459628400 + ... + 2018459628519.

It is an arithmetic number, because the mean of its divisors is an integer number (28258434798440).

Almost surely, 2^{242215155415140} is an apocalyptic number.

242215155415140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242215155415140 is an abundant number, since it is smaller than the sum of its proper divisors (435987279747420).

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

242215155415140 is a wasteful number, since it uses less digits than its factorization.

242215155415140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036919256931 (or 4036919256929 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 42.

The spelling of 242215155415140 in words is "two hundred forty-two trillion, two hundred fifteen billion, one hundred fifty-five million, four hundred fifteen thousand, one hundred forty".