240156720747025 has 12 divisors (see below), whose sum is σ = 301873708163212. Its totient is φ = 189493522122240.

The previous prime is 240156720746993. The next prime is 240156720747067. The reversal of 240156720747025 is 520747027651042.

It can be written as a sum of positive squares in 6 ways, for example, as 2584561029649 + 237572159717376 = 1607657^2 + 15413376^2 .

It is not a de Polignac number, because 240156720747025 - 2⁵ = 240156720746993 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 65796360024 + ... + 65796363673.

Almost surely, 2^{240156720747025} is an apocalyptic number.

240156720747025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240156720747025 is a deficient number, since it is larger than the sum of its proper divisors (61716987416187).

240156720747025 is a wasteful number, since it uses less digits than its factorization.

240156720747025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131592723780 (or 131592723775 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 52.

The spelling of 240156720747025 in words is "two hundred forty trillion, one hundred fifty-six billion, seven hundred twenty million, seven hundred forty-seven thousand, twenty-five".