22640706031 has 4 divisors (see below), whose sum is σ = 22779606232. Its totient is φ = 22501805832.

The previous prime is 22640706017. The next prime is 22640706037. The reversal of 22640706031 is 13060704622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22640706031 - 2⁷ = 22640705903 is a prime.

It is a super-2 number, since 2×22640706031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22640705984 and 22640706002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640706037) 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, 69449856 + ... + 69450181.

It is an arithmetic number, because the mean of its divisors is an integer number (5694901558).

Almost surely, 2^22640706031 is an apocalyptic number.

22640706031 is a deficient number, since it is larger than the sum of its proper divisors (138900201).

22640706031 is a wasteful number, since it uses less digits than its factorization.

22640706031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138900200.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 22640706031 in words is "twenty-two billion, six hundred forty million, seven hundred six thousand, thirty-one".