240536645562621 has 4 divisors (see below), whose sum is σ = 320715527416832. Its totient is φ = 160357763708412.

The previous prime is 240536645562593. The next prime is 240536645562659. The reversal of 240536645562621 is 126265546635042.

240536645562621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 240536645562621 - 2²³ = 240536637174013 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 (240536645562721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40089440927101 + ... + 40089440927106.

It is an arithmetic number, because the mean of its divisors is an integer number (80178881854208).

Almost surely, 2^{240536645562621} is an apocalyptic number.

It is an amenable number.

240536645562621 is a deficient number, since it is larger than the sum of its proper divisors (80178881854211).

240536645562621 is an equidigital number, since it uses as much as digits as its factorization.

240536645562621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80178881854210.

The product of its (nonzero) digits is 62208000, while the sum is 57.

The spelling of 240536645562621 in words is "two hundred forty trillion, five hundred thirty-six billion, six hundred forty-five million, five hundred sixty-two thousand, six hundred twenty-one".