240161612621 has 8 divisors (see below), whose sum is σ = 274481223360. Its totient is φ = 205844704128.

The previous prime is 240161612609. The next prime is 240161612633. The reversal of 240161612621 is 126216161042.

It is an interprime number because it is at equal distance from previous prime (240161612609) and next prime (240161612633).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240161612621 - 2²² = 240157418317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240161614621) 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, 481391 + ... + 843836.

It is an arithmetic number, because the mean of its divisors is an integer number (34310152920).

Almost surely, 2^240161612621 is an apocalyptic number.

It is an amenable number.

240161612621 is a deficient number, since it is larger than the sum of its proper divisors (34319610739).

240161612621 is a wasteful number, since it uses less digits than its factorization.

240161612621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351123.

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 240161612621 its reverse (126216161042), we get a palindrome (366377773663).

The spelling of 240161612621 in words is "two hundred forty billion, one hundred sixty-one million, six hundred twelve thousand, six hundred twenty-one".