42221560641 has 16 divisors (see below), whose sum is σ = 60654996864. Its totient is φ = 25969999104.

The previous prime is 42221560547. The next prime is 42221560643. The reversal of 42221560641 is 14606512224.

It is not a de Polignac number, because 42221560641 - 2²³ = 42213172033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42221560643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177976 + ... + 340761.

It is an arithmetic number, because the mean of its divisors is an integer number (3790937304).

Almost surely, 2^42221560641 is an apocalyptic number.

It is an amenable number.

42221560641 is a deficient number, since it is larger than the sum of its proper divisors (18433436223).

42221560641 is a wasteful number, since it uses less digits than its factorization.

42221560641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520840.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 42221560641 in words is "forty-two billion, two hundred twenty-one million, five hundred sixty thousand, six hundred forty-one".