22245566677890 has 16 divisors (see below), whose sum is σ = 53389360027008. Its totient is φ = 5932151114096.

The previous prime is 22245566677877. The next prime is 22245566677891. The reversal of 22245566677890 is 9877666554222.

It is not an unprimeable number, because it can be changed into a prime (22245566677891) 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, 370759444602 + ... + 370759444661.

It is an arithmetic number, because the mean of its divisors is an integer number (3336835001688).

Almost surely, 2^{22245566677890} is an apocalyptic number.

22245566677890 is an abundant number, since it is smaller than the sum of its proper divisors (31143793349118).

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

22245566677890 is a wasteful number, since it uses less digits than its factorization.

22245566677890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741518889273.

The product of its (nonzero) digits is 609638400, while the sum is 69.

The spelling of 22245566677890 in words is "twenty-two trillion, two hundred forty-five billion, five hundred sixty-six million, six hundred seventy-seven thousand, eight hundred ninety".