22002365640 has 32 divisors (see below), whose sum is σ = 66007097280. Its totient is φ = 5867297472.

The previous prime is 22002365629. The next prime is 22002365653. The reversal of 22002365640 is 4656320022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22002365598 and 22002365607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91676404 + ... + 91676643.

It is an arithmetic number, because the mean of its divisors is an integer number (2062721790).

Almost surely, 2^22002365640 is an apocalyptic number.

22002365640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002365640 is an abundant number, since it is smaller than the sum of its proper divisors (44004731640).

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

22002365640 is a wasteful number, since it uses less digits than its factorization.

22002365640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183353061 (or 183353057 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 22002365640 its reverse (4656320022), we get a palindrome (26658685662).

The spelling of 22002365640 in words is "twenty-two billion, two million, three hundred sixty-five thousand, six hundred forty".