22146666435 has 64 divisors (see below), whose sum is σ = 40011408000. Its totient is φ = 11766083328.

The previous prime is 22146666427. The next prime is 22146666439. The reversal of 22146666435 is 53466664122.

It is a happy number.

It is not a de Polignac number, because 22146666435 - 2³ = 22146666427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (22146666439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2937751 + ... + 2945279.

It is an arithmetic number, because the mean of its divisors is an integer number (625178250).

Almost surely, 2^22146666435 is an apocalyptic number.

22146666435 is a deficient number, since it is larger than the sum of its proper divisors (17864741565).

22146666435 is an frugal number, since it uses more digits than its factorization.

22146666435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824 (or 7806 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 22146666435 in words is "twenty-two billion, one hundred forty-six million, six hundred sixty-six thousand, four hundred thirty-five".