242624161521 has 48 divisors (see below), whose sum is σ = 405618520320. Its totient is φ = 136886025600.

The previous prime is 242624161519. The next prime is 242624161553. The reversal of 242624161521 is 125161426242.

242624161521 is a `hidden beast` number, since 2 + 4 + 2 + 624 + 1 + 6 + 1 + 5 + 21 = 666.

It is not a de Polignac number, because 242624161521 - 2¹ = 242624161519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242624161511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2231211 + ... + 2337423.

It is an arithmetic number, because the mean of its divisors is an integer number (8450385840).

Almost surely, 2^242624161521 is an apocalyptic number.

242624161521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242624161521 is a deficient number, since it is larger than the sum of its proper divisors (162994358799).

242624161521 is a wasteful number, since it uses less digits than its factorization.

242624161521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106686 (or 106683 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

Adding to 242624161521 its reverse (125161426242), we get a palindrome (367785587763).

The spelling of 242624161521 in words is "two hundred forty-two billion, six hundred twenty-four million, one hundred sixty-one thousand, five hundred twenty-one".