240632678136656 has 20 divisors (see below), whose sum is σ = 502089338035572. Its totient is φ = 111061236062976.

The previous prime is 240632678136647. The next prime is 240632678136751. The reversal of 240632678136656 is 656631876236042.

It can be written as a sum of positive squares in 2 ways, for example, as 100718887374400 + 139913790762256 = 10035880^2 + 11828516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240632678136592 and 240632678136601.

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, 578443937621 + ... + 578443938036.

Almost surely, 2^{240632678136656} is an apocalyptic number.

240632678136656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

240632678136656 is an abundant number, since it is smaller than the sum of its proper divisors (261456659898916).

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

240632678136656 is a wasteful number, since it uses less digits than its factorization.

240632678136656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156887875678 (or 1156887875672 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 65.

The spelling of 240632678136656 in words is "two hundred forty trillion, six hundred thirty-two billion, six hundred seventy-eight million, one hundred thirty-six thousand, six hundred fifty-six".